At Space and Time, we are solving Web3’s toughest data analytics challenges at planetary scale with decentralized, peer-to-peer technology. We are building the data foundation of Web3: a fully decentralized and community-operated data warehouse, using novel cryptography to connect tamperproof query results directly to smart contracts. This enables joining trustless on-chain and off-chain data in a single platform, allowing Web3 developers to build new use cases quickly. Our team is growing fast, backed by the top L1 blockchains and VCs, as well as enterprise partners such as Microsoft and Samsung NEXT.

A career at Space and Time is lucrative, fast-paced, and very creative. We value you (and all your ideas) like family and we bring an endless supply of perks. This includes flexible workweeks + flexible vacation, add-on bonuses for hard work, we attend exciting events/conferences/parties, we’re headquartered on the beach near LA (but don’t mind you working remote), and most importantly- we provide analytics technology to the largest dApps, DAOs, DeFi/DEXs, GameFi, NFT platforms, enterprises, etc. We are committed to growing a diverse and welcoming team in a safe space to be yourself and learn from the most innovative minds in blockchain and data warehousing. Help us invent the first truly decentralized data platform!

As the Head of our Web3/Blockchain/Oracles Engineering team, you will lead highly skilled engineers responsible for developing a dApp interoperability platform and backend to Web3. You will focus on hosted cloud analytics infrastructure for major blockchains, multichain or cross-chain smart contract frameworks, tamperproof blockchain indexing techniques, and proprietary zkSNARK-like proofing mechanisms. You will partner with internal and external teams to build and scale dApps on top of our data platform. This team is responsible for building the integrations between our decentralized data warehouse and major blockchains via oracle networks, which will also be used for query validation and network management. In addition, you’ll be defining Web3 analytics challenges that supporting teams will help solve. This role is vital to our organization and will report to the executive and senior engineering leadership.

# Responsibilities:

* Grow the team by recruiting, interviewing, and hiring new team members
* Sourcing experienced web3 engineers and building training to onboard web2 full stack engineers to web3
* Leading architecture development, execution all the way to mainnet and beyond.. focusing on SLAs/scale that pushes the bounds of Web3
* Integrating our data platform with the web3 stack (MetaMask, Web.js, Hardhat, OpenZeppelin, Filecoin, Oracle Networks, multichain smart contracts, etc)
* Develop a vision and strategy for the product portfolio and management execution with regards to dApp data acquisition and blockchain-focused data acquisition
* You will be developing innovative techniques to anchor data to blockchains via smart contracts as well as to index/read from blockchains via tamperproof RPC calls.
* Building tools, platforms and database integrations to turn a blockchain-secured data/analytics platform into a user-facing hosted cloud solution
* Codifying best practices for future reuse in the form of accessible, reusable patterns, templates, and code bases to facilitate meta data capturing and management
* Managing a team of software engineers writing new code to build bigger, better, faster, more optimized analytics tools for Web3
* Interacting with exec team and senior engineering leadership to define, prioritize, and ensure smooth deployments with other operational components
* Highly engaged with industry trends within Web3 (as well as analytics domain / distributed database domain)
* Understand how data and analytics use cases across Web3 and major blockchains can be optimized through cluster-compute of SQL at extreme scale, on a global decentralized p2p network
* Develop the future leaders of Space and Time by providing continuous mentorship, coaching, and growth opportunities.
* Foster a culture of creativity and innovation while also promoting practical/agile decision-making

# Skills & Qualifications

* Bachelor’s degree in computer science or related technical field. Masters or PhD a plus.
* 8+ years experience engineering software with a few years at a leading Web3 org
* 3+ years experience leading/growing high-performance software eng teams
* A track record of recruiting and leading technical teams in a demanding talent market
* Rock-solid engineering fundamentals
* Knowledge of blockchain indexing, web3 stack, consensus mechanisms, etc
* Experience with rapid development cycles in a web-based environment
* Strong scripting and test automation knowledgePassionate about Web3, blockchain, decentralization, and a base understanding of how data/analytics plays into this
* Ability to engage senior business leaders and translate between the needs of the business and the demands of / capacities of technology
* If Remote, willing to let us fly you into Southern California to meet with the leadership team up to once a month (to connect in-person for a few days)

Web3

Blockchain

Management

Remote

Head of Web3 Engineering

The mission of Trust Machines is to grow the Bitcoin economy. We’ve recently raised $150M to realize this vision, build Bitcoin apps, and the open-source technologies required to unleash the true potential of Bitcoin for DeFi and Decentralized Applications.

Zest Protocol is on a mission to expand the Bitcoin economy by building the first on-chain Bitcoin capital markets. We’re building a Bitcoin lending protocol that enables Bitcoin liquidity providers to earn Bitcoin yield through professionally managed lending pools. Zest pools lend to the most credit-worthy participants in the Bitcoin economy, allowing them to borrow against their future earnings and thus growing the Bitcoin economy.

We are a remote friendly-company — with our headquarters in New York and a strong commitment to ensuring people can do great work here and thrive without having to live near an office. This role is open to candidates across the world.

# About the Opportunity

We’re looking to work with a smart contract developer in our remote team who can help us upgrade and maintain Zest Protocol’s core smart contracts. Zest Protocol interacts with both stacks and bitcoin blockchains.

The ideal candidate has Solidity (or other smart contract language) experience, experience with Rust, and experience interacting with the bitcoin blockchain. As the second smart contract developer on the team, you’ll be responsible for co-designing and implementing the new contracts or contract changes.

# What You’ll Do:

* Design and implement new Zest Protocol v2 core contracts
* Ensure contract security by assessing potential attack vectors and preventing exploits
* Ensure code quality by reviewing together with other smart contract developer
* Respond to and fix issues raised by security audits
* Communicate and work closely with developer team

# What We’re Looking For:

* 2+ years of Solidity or other smart contract language development
* Demonstrable experience of deploying smart contracts run in blockchain protocols
* Knowledge of security best practices in smart contract languages (knowledge of reentrancy attacks, frontrunning, int overflow and underflow, other exploits..)
* Proven architectural design skills for creating efficient code patterns optimized for speed and performance
* Experience auditing contracts
* 4+ years of experience with Rust or other core programming language core programming languages (C / C# / C++ / python / other relevant)
* Strong computer science background
* Experience with web wallets
* BONUS: Experience with lisp programming language

# We’d Also Like to See:

* Love for Bitcoin and crypto
* Self-motivated & experience in working with small teams
* Attitude of humbleness towards technology and the risks of creating problems from trying to solve problems too early
* Experience building applications that interact with blockchains
* We’d love to hear from you even if you don’t have experience or interest in every bullet. There’s no perfect candidate and we want to find the right fit, even if it’s different than we imagine. We especially would like to meet underrepresented/underestimated candidates.

# Why Zest Protocol:

* Experienced founding team; founded multiple startups and one exit
* Fully funded and backed by Trust Machines, our parent company
* Flexibility to work from anywhere

# Compensation:

* Competitive NYC based Salary (regardless of location, benchmarked annually) + equity/token
* (Regardless of location: $90,000 - $180k Base Salary)

# What we offer:

* Work from home
* Competitive salary based on NYC comp (regardless of location, benchmarked annually)
* Token incentives
* Open Vacation Policy, take the days you need
* Up to 16 weeks of paid parental leave
* Your choice of technical setup and equipment

Rust

Smart contracts

Solidity

Smart Contract Developer

DXdao is building a suite of Web3 products. As such, it heavily relies on the technical expertise of solidity developers with strong knowledge of building on top of Ethereum. We are looking for a Senior Solidity Developer to join us on our multi-chain, AMM Swapr!

# What you should be interested in doing:

* Building the next generation of DeFi products.
* Working on the cutting edge of decentralization.
* Contributing to a distributed, consensus based, and on chain organization.
* Creating unique solutions to dApp specific user experience challenges.
* Researching into new areas around DeFi space and experiment how these could be integrated towards Swapr / DXdao ecosystem.
* Designing, implementing, testing, and auditing protocol upgrades and additions.
* Driving high-level decisions about Swapr protocol architecture, features, quality standards, and best practices.

# Core responsibilities on Swapr:

* Define, prioritise and lead smart contracts roadmap.
* Discover, architect and implement tech stack that will yield competitive advantage and ensure a stable and scalable product.
* Identify opportunities and risk in the ecosystem and propose initiatives.
* Drive the design, development, and implementation of new Swapr features.
* Coordinate deployment and expansion of Swapr on new EVM networks.
* Lead ongoing technical initiatives around bringing value to SWPR token
* Smart contract related operations.

# We are looking for:

* A DAO/DeFi enthusiast who wants to build open source decentralized applications focused on financial freedom and privacy.
* An independent, self-starter who is comfortable working in a fast-paced environment.
* Someone with extensive experience in solidity (ideally +2 years) and in deploying AMMs.
* A contributor with excellent written and verbal communication skills and can collaborate effectively on a breadth of technical topics.

DeFi

Portugal

Senior Solidity Developer

Fuel Labs is building the fastest modular execution layer in the world. You will be working at the bleeding edge of blockchain scalability R&D designing and building robust blockchain full node software powered by a next-generation virtual machine.

# Required Experience

* 5+ years of experience as a software engineer
* Strong proficiency in Rust, C++, or Golang (or other systems language)
* Extensive knowledge of virtual machines or blockchain node software
* Experience developing or designing P2P distributed systems
* Native level proficiency in written and oral English
* Excellent communication skills
* Prior experience working remotely in a globally distributed team

# Bonus

* Experience with financial systems or other high security services
* Solidity/smart contract development
* Consuming and contributing to open source codebases
* Background in philosophy

Blockchain protocols

Senior Protocol Engineer

Offchain Labs is building a suite of scaling solutions for Ethereum. This includes Arbitrum, an Optimistic Rollup, that instantly scales apps, reducing costs and increasing capacity, without sacrificing Ethereum's security. Porting contracts to Arbitrum requires no code changes or downloads since it’s compatible with existing Ethereum developer languages and tooling.

Our team is extremely passionate and works tirelessly to bridge the gap between what blockchain is and what blockchain can be. We strive to maintain an atmosphere that fosters innovation and new ideas through collaboration, research, and deep discussions. After raising an initial round of $3.8M in seed funding in January 2019 and a $20M series A, as well as a $100M series B in 2021, we are ready to hire additional team members that have an interest in working in the blockchain space and a knack for approaching problems in unconventional ways.

# Who you are:

* Great understanding of blockchain development on the Ethereum Network
* Experience with solidity and other Web3 related technologies
* Possess a strong sense of ownership in your work, which drives you to find ways to do things better and faster
* Always up-to-speed on the latest technologies
* Constantly on the lookout for new and innovative ways to solve complex problems through rigorous experimentation
* Your communication style is open, transparent, and direct, and you consistently work in tight collaboration with your teammates
* Always open to feedback, new ideas, and opportunities for self-improvement
* You look for ways to help out beyond the scope of your day-to-day work

# What you've done:

* Have dabbled in, educated yourself on, or are experienced working on blockchain technology
* Eager to bring cutting-edge research to the real world and help build a platform for the next generation of cryptocurrency applications
* Security-minded and always keeping an eye out for potential threats and vulnerabilities in your code
* Mastered CS fundamentals, either in a formal university program or through self-learning

Ethereum

Blockchain Developer

Shard Labs is a global remote R&D blockchain company. We are specialists in building digital products that require blockchain implementation. While producing blockchain technology we rely on and use two cores of blockchain-based systems: transparency and trust.  "A world where people have control over their money, data, and power of governance" is our vision. 

Tech stack that we use (but are not limited to): React.js, Node.js, Solidity, Go, Rust, Docker, Cairo. Our cloud platform of choice is AWS.

Proudly partners with: Starkware, Moonbeam, Kerberus Prime, Ethereum, Polygon, Polkadot, Celo, Lido.

We are looking for a Senior Engineer Manager to join our team. This is an excellent opportunity for those professionals looking to develop in one of the fastest-growing companies in the industry!

# Main Activities:

* Build and manage backend engineering teams and guide the development of services and infrastructure across both web and mobile.
* Collaborate with engineers, designers, product managers and senior leadership to turn our vision into a tangible roadmap every quarter.
* Manage a team to break down complex projects into smaller pieces and iterate on their design and implementation.
* Lead the development of smart contracts and the performance of blockchain integration with existing applications.
* Be a thoughtful technical voice and support your team in making diligent architectural decisions.
* Research and test new technologies to use for the project.
* Collaborate with the team, and other stakeholders to maintain a high quality in a fast-paced, iterative environment.
* Work with our talent organization to source and hire amazing engineers who will expand the ShardLabs culture and product.

# What are we looking for:

* 4+ years of experience as an Engineer
* Experience working with WEB3 prefered
* Knowledge of continuous integration tools and blockchain management tools.
* Team Management and Stakeholder Management
* Advanced English level.

# Important to know about us:

* Remote work is our thing. We take pride in creating and nurturing an inclusive and exceptional remote environment where everyone is welcomed and accepted as they are.
* Our rapid growth results from a motivated, determined, and hard-working team that brings experience in software development from around the world.
* The knowledge and experience you will bring are essential for the starting point, but even more crucial to us is your hunger for learning, good organizational skills, and initiative in your daily work. No matter how much you already know, there's always something you can learn or somebody you can teach.
* We trust our employees. We won't constantly be behind your back, so it is good to possess self-driven skills to make it easier for you to organize your work. We will be your inspiration, but we are also open to hearing your voice. We highly value good suggestions, fresh ideas, and new perspectives.
* We live and promote a good work-life balance. If your dream is to make a career shift – we support exploring new fields right under our roof.

Europe

Web3 Senior Engineering Manager

Real Vision helps people understand the complex world of finance, business, and the global economy with real in-depth analysis by real experts through the power of its community.

The company is on a mission to democratize the very best financial intelligence for all and become the one place where everyone lives their financial lives.

This enhanced platform will offer members different learning journeys that put them in control of their finances. Members will be able to watch videos, listen to podcasts, monitor market prices, analyze markets and economies, do technical analysis, create watch lists, read and publish research, monitor their portfolios, execute trades across both Tradfi and Crypto, and contribute to a thriving hive mind community.

To help lead this growth, Real Vision is looking for a Front-End Developer. We're a strong team based all over the world, headquartered in the Cayman Islands, and excited to be driving Real Vision’s AI, ML, and Web3 initiatives. 

You will play a crucial role and as such you must be comfortable in high-profile, high-pressure situations, and know your way around the traditional financial markets as well as the Crypto space. You must be willing and able to work on multiple projects simultaneously; at the rapid pace the Web 3.0 world demands. You are detail oriented, highly creative, and adeptly translate conceptual plans into reality. You care deeply about our customers’ experience, and hopefully you are a huge fan of Real Vision yourself!  

# You'll work on:

* Translating UI/UX design wireframes into code that will produce the visual and interactive elements of applications. (These applications will generally be web3 focused, but you may need to work on traditional web applications too)
* Contribute to the overall design of new customer-facing functionality
* Prepare and deploy production-grade solutions by determining system specifications, and when relevant, integrating them with Real Vision's existing tech stack, standards, and best-practices
* Writing clean, efficient, secure, modular, well-documented (and whenever possible reusable) code (usually in React, Python or Typescript) that is easy to read and understand by other team members
* Document and visually describe solutions by writing documentation, diagrams (flowcharts, layouts, customer journeys, network diagrams, etc.) useful code comments, and wiki articles
* Write code that supports the integration of multiple cryptocurrency wallets with out existing front-end systems
* Write code that will integrate/bridge our web3 initiatives with our existing back-end systems
* Design and conduct unit and integration tests
* Identify and resolve bugs and security vulnerabilities
* Create and assign tasks to yourself and other developers in JIRA
* Review pull requests in GitHub from other developers
* Participate in planning sessions with product owners and other members of the team to ideate web3 and traditional software solutions
* Update your own (as well as the team's) knowledge by staying up to date with state-of-the-art development tools, programming techniques, tooling, and emerging technologies

# We are looking for someone who:

* Bachelor's or Masters degree in Computer Science (or related field), or equivalent practical experience
* Understand and strong interest in blockchain concepts/theory, smart contracts, and the EVM
* Experience with React
* Experience with HTML5, CSS, JS (ES6+)
* Experience using web3-related libraries like Brownie, web3.js, and ether.js
* Experience with one or more web3 infrastructure providers such as Moralis, Infura, or Alchemy
* Experience integrating reactive web pages with smart contracts
* Experience integrating reactive web pages with crypto wallets such as MetaMask, WalletConnect, etc.
* Ability to implement front-end designs that work equally well on desktop browsers and mobile devices
* Understand cybersecurity principles such as: security by design, layered security, secure coding principles, zero-trust, etc.
* Excellent communication and teamwork abilities. This isn't just a cliche bullet point; these soft skills are necessary to thrive as part of our team and company

If you don't meet all of our requirements exactly, don't be put off! If you've got a passion for web3 and Real Vision’s mission, we’d love to hear from you.  

# Nice to haves: 

* Experience with one of the major cloud-services providers
* Experience with Next.js, Typescript & TailwindCSS
* Experience with React Hooks or MobX State Management
* You're a huge fan of Real Vision already

# What we offer:

* Real Vision is 100% remote
* Our compensation philosophy is to pave above the median average
* We provide equity grants to all our full-time employees
* We pay 100% monthly premium for medical, including dental and vision for our employees and even cover families at a heavily reduced rate
* We offer 401k matching and a Real Vision All Access membership ($6000 value per year) so our employees can learn how to invest
* All our employees get at least 25 days of PTO (5 weeks) to cover vacation, sick leave, or personal time away, and we honor US Holidays
* Perhaps most importantly, our culture is considered one of the best places to work in the world; we offer a working environment that is collaborative, authentic, passionate, transparent and high-vibe.

JavaScript

React

Web3 Frontend Developer

Vesta is building a suite of new products, hoping to combine data analysis, invention, and rigorous inquiry to help bring decentralized finance to the mainstream.

We are seeking a solidity engineer to join our Engineering team.

# Engineering at Vesta

When you join Vesta product team, you’ll take on a key role on the development and the improvement of our services. You’ll try to solve unresolved issues that will push forwards Vesta’s products and the ecosystem of the blockchain.

# The Team

The Blockchain Developers Group is looking for a passionate Solidity developer to work on maintenance and development of new product. Your primary focus will be to work closely with the product design team on Vesta V2.

Blockchain Developers Group is responsible for developing and maintaining all contracts, secuirty, data analytics and indexing events for the front-end team (e.g: TheGraph).


# Your day to day

As a Solidity Engineer you will work on
* Developing new services and features using Solidity, Foundry for the blockchain and Typescript for deployment scripts & GraphQL
* Collaborating with the team to architect and design robust, resilient, and maintainable solutions in an Agile environment, ensuring the quality of the delivered product
* Deploying, operating and maintaining services in production
* Ensuring scalability and availability of the services
* Collaborating with product owners and front-end developers to deliver features while meeting team deadlines

# What we’re looking for

As a Solidity Engineer, you background will look like
* 2+ Years of back-end engineering experience in the software industry
* 1+ Years of engineering experience in the blockchain industry
* A good understanding of Solidity, Typescript, EVM, OOP and Functional programming
* A good understanding of Foundry
* A good understanding of Google Testing Pyramid
* A good understanding of Proxies
* Experience with debugging tool to debug local code & past TXs
* Experience with a source control tool (Git, Github)
* Experience working in an agile environment with CI/CD processes
* Experience with auditing tools like slither
* Experience creating UML’s flow and software architecture

# You will enjoy the following benefits:

* Pay: Competitive salary + token ownership
* Learning: Tuition reimbursement, conference and training sponsorship
* Time Off: Generous vacation and unlimited sick days
* Hybrid Work Policy: Flexible in-office days in Vancouver with budget for home office setup

TypeScript

Canada

Solidity Engineer

Chainkemists is a startup building new and unconventional gaming experiences made only possible by blockchain technology. We firmly believe that cryptographic protocols will usher in a new era of online gaming experiences that are community owned and governed, resilient, composable, open-source, and can ultimately LAST FOREVER. We are a team of gaming industry veterans excited to unlock a new future. We are looking for driven and passionate individuals who want to shape that new future with us.

We are looking for a Blockchain Protocol Engineer to join our team.

# Responsibilities

* Architect on-chain protocols satisfying product and game design requirements
* Design, prototype, and deliver cryptographically secure solutions
* Identify and apply cutting edge developments (ZK proofs) to product requirements

# Qualifications

* Experience developing high performance applications in Golang, Rust, or C++
* Deep expertise of cryptography fundamentals and blockchain primitives
* Foundational understanding of P2P networks and distributed systems
* Experience with variety of blockchain networks (Ethereum, Solana, Filecoin)
* Ability to adapt to the latest developments in a rapidly evolving ecosystem

# Nice to Have

* Experience with game design and development
* Degree in math, physics, computer science, or related engineering
* Background knowledge in economics and finance

Blockchain Protocol Engineer

We are a team of world class builders and researchers with expertise across several domains: Ethereum Protocol Engineering, Layer-2, Decentralized Finance (DeFi), Miner Extractable Value (MEV), Smart Contract Development, Security Auditing and Formal Verification.

Working to solve some of the most challenging problems in the blockchain space, we frequently collaborate with renowned companies, such as Ethereum Foundation, StarkWare, Gnosis Chain, Aave, Flashbots, xDai, Open Zeppelin, Forta Protocol, Energy Web, POA Network and many more.

We actively contribute to Ethereum core development, EIP's and network upgrades together with the Ethereum Foundation, and other client teams.

Today, there are nearly 200 of us working remotely from over 45+ countries.

# The role:

We’re looking for auditors and developers with smart contract auditing experience/knowledge to join our smart contract auditing team. You'll work on projects written in Solidity, Cairo, or both. We are looking for someone who has a solid understanding of the Ethereum Virtual Machine, Yellow Paper, and the Solidity language. You’ll get the opportunity to work at the bleeding edge of blockchain technology and interact with different teams working in every aspect of Ethereum and StarkNet.

# Responsibilities:

* Work directly with protocols in the Ethereum and StarkNet ecosystems to review their code and help secure their protocols;
* Collaborate with teammates to maintain and continually improve our existing blockchain security tools using modern software engineering practices;
* Develop new blockchain security tools;
* Engage in meetings with clients to discuss security and best practice improvements.

# Requirements:

* 1+ year(s) of experience in Solidity security analysis;
* Solid understanding of the Ethereum Virtual Machine and Yellow Paper;
* Fluency in Solidity development and the deployment of smart contracts;
* Detailed understanding of common smart contract vulnerabilities;
* Fluency with common tools and frameworks used for development and security analysis of smart contracts;
* Strong debugging skills and/or experience in reverse engineering;
* Basic knowledge of Cairo and Starknet.

# Nice to have:

* Multiple years of prior experience in traditional cybersecurity (before transitioning to the blockchain space);
* Experience in Cairo development;
* Solid understanding of StarkNet;
* Good written and verbal communication skills;
* Understanding of most common DeFi applications.
* A portfolio of blog posts or presentations on DeFi or security-related topics;
* Publicly visible audit reports in your portfolio.

# Perks and benefits:

* Fully remote
* Flexible working hours
* Plus equity

Security

Smart Contract Auditor

Reservoir is a developer-focused NFT orderbook and liquidity aggregator. Our mission is to provide open and scalable infrastructure powering the next wave of NFT applications.

# About the role:

We are looking for a Protocol Engineer to join our development team. As a Protocol Engineer you will focus on building blockchain protocols and smart contracts for the Reservoir ecosystem.

# About you:

* You are passionate about web3, NFTs and other emerging technologies
* You thrive in a fast paced, high-autonomy environment
* You enjoy collaborating with other engineers and technical product people
* You have an appetite to continuously learn, grow, and contribute

# Skills and qualifications:

* 4+ years of experience as a software engineer
* 1+ years of experience developing on Ethereum or EVM-compatible blockchains
* Experience writing Solidity smart contracts and using general web3 libraries (ethers.js, foundry, etc.)
* Knowledge and understanding of typical protocol design patterns for NFTs and NFT marketplaces
* Experience with Typescript/NodeJS

# Perks at Reservoir Labs:

* Competitive salary and equity packages
* Flexible medical, dental, and vision benefits for you and your family
* Fully remote - Work from anywhere

Protocol Engineer

The mission at Satoshi Energy is to accelerate progress toward a world with decentralized sound money and abundant sustainable energy. The company was founded in 2018 based on the idea that 24/7 power markets will benefit from 24/7 financial settlement and that the most sustainable and successful bitcoin mining will be powered by low cost renewable energy. Today, we are connecting renewable energy assets with bitcoin mining data centers under novel contract structures. In the future, we envision every kilowatt-hour streamed to an energy consumer will be settled instantaneously with a payment streamed to the energy producer.

As a Bitcoin Software Engineer, you will join a small, focused team of bitcoiners, engineers, and energy experts and have the opportunity to find novel solutions to technical challenges in the bitcoin and energy space. You will work across the organization and assist us with research, design, development, and deployment of cutting-edge solutions. As we grow, you will be instrumental in helping to build the team and build a more decentralized and sustainable future.

# Your Day to Day

* Work alongside product managers and fellow engineers.
* Architect and build real-time financial settlement applications for the energy industry.
* Write specifications for energy related Bitcoin and layer 2 (i.e. Lightning Network) protocols.
* Collaborate and communicate with sales, development, and operations teams to understand the needs of our customers.
* Mentor and train other team members on Bitcoin and layer 2 (i.e. Lightning Network) related best practices.

# Requirements

* Minimum 7 years experience programming, preferably in the energy or fintech industry.
* Expert understanding of the Bitcoin and layer 2 (i.e. Lightning Network) protocols.
* Experience setting up and maintaining cloud infrastructure for critical systems
* Experience building high-quality, innovative, and fully performing software in compliance with coding standards and technical design.
* Strong focus on collaboration, ownership, and test-driven development.
* Self-motivator with the flexibility and willingness to work on various initiatives simultaneously.

# Desired Skills and Experience

* Obsession with bitcoin, bitcoin mining, and energy markets.
* Desire to build a future with sustainable energy and sound money.
* Experience successfully managing software development teams and projects.
* Knowledge of security best practices, cryptography, and ongoing developments in the industry.

# Company Culture

* We are free thinkers, we believe in meritocracy, we challenge assumptions meticulously, and we don’t get overly emotional if we’re wrong.
* We believe in providing freedom and responsibility to foster a growth culture based on trust, transparency, and teamwork.
* We encourage each other to seek discipline, balance, and fun in all parts of life, so that we can always perform at our best on the job.
* We are a distributed team on a mission to build decentralized global power markets. You are welcome to work remote or join the team in Austin or Houston, Texas.

# Benefits

* Bonus plan, 401k, and equity participation.
* Medical, Dental and Vision.
* Unlimited PTO.
* Company gatherings in fun places - the best of being fully remote while still coming together regularly!

Cryptocurrency

BitCoin

Bitcoin Software Engineer

* Build smart contracts and corresponding tooling and infrastructure on Ethereum and Polygon
* Translate features into development stories in collaboration with product management and drive their delivery & execute the backlog
* Join the full lifecycle of contract development, including requirement gathering, dev, test, deployment and event monitoring.
* Code review the work of peers to assure quality, security, and performance
* Research new trends & assets in the DeFi ecosystem
* Work with other world-class crypto and DeFi protocols and their founders and developers
* In your application, please provide a brief summary of your coding experience and please include two relevant links/examples that show your best work.

# Requirements

* You’ve shipped products and delivered successful releases
* You have 4+ years of experience as a software engineer
* 1+ years of experience with Solidity, Vyper or smart contract development preferred
* Strong knowledge of NodeJs, Javascript/Typescript, HTTP, WebSockets, JSON-RPC
* Advanced knowledge of AWS (EC2, ELB, RDS, etc.)
* Experience working with agile methodologies (Scrum, CI/CD, TDD, Pair Programming)
* You are proactive. You come up with great ideas and prove them with data.
* Fluency in English, German is a plus (other languages a bonus)
* Accept and retain a large degree of independence and ownership for your decisions and dedicated tasks
* Very high attention to detail with emphasis on quality

# Awesome extras:

* You have worked with a FinTech or Financial Services service before
* Experience with web3 related libraries and API design
* Passion for blockchain technology, crypto-economic protocol design, game theory and/or decentralized finance
* Strong debugging skills and/or experience with reverse engineering

# With us, you’ll get:

* A competitive compensation package and profit participation in our token
* The opportunity to be part in one of the most exciting tech projects of 2022
* To work directly with highly experienced founders (built and sold 3 well known FinTech companies) on building and scaling a world-class DeFi product
* Direct influence on our development and vision with your contributions being valued accordingly
* A focused, communicative team with aligned goals
* Great market opportunity and growth potential
* Time off when you need it
* Subsidized public transportation ticket
* Regular team lunches and fully-stocked kitchen

Germany

Chainlink decentralized oracle networks provide tamper-proof inputs, outputs, and computations to support advanced smart contracts on any blockchain. As the ecosystem continues to grow at an explosive pace we are building the infrastructure to further secure the reliability of our networks and incentivize good behavior 

As a smart contract engineer on the Economics team, you will develop highly impactful smart contracts that further secure Chainlink oracle networks to provide best in class off-chain data to the blockchain ecosystem. You will work closely with all functions at Chainlink, from engineering, operations, finance, marketing, and more to ensure the team releases easy to use and easy to manage smart contract driven products. Your core team will be composed of smart contract and software engineers and you will report to the engineering lead on the team.

# Your Impact

* Owning large components of the smart contract architecture that secures Chainlink data feeds
* Work closely with fellow engineers to build the end to end experience for your products
* Work closely with operations to ensure smooth deployment and management of your dApps
* Partner with the research team to build products that are practical and easy to use
* Collaborate with non-technical stakeholders to ensure you build products that delivery positive user experience and meets business constraints
* Actively participate in leveling up yourself and your peers in Solidity and smart contract development

# Requirements

* 3+ years of professional engineering experience working in a collaborative product-driven environment
* Deployed multiple smart contracts to Ethereum mainnet or an EVM compatible chain that secured substantial user funds
* Deep understanding of Solidity and the EVM
* Active participant in the blockchain ecosystem as a user
* Experience owning multi month long projects, including communication of progress, dependencies, and risk mitigation directly with stakeholders and partners
* Computer science fundamentals and systems design
* Experience in Rust, TypeScript, AWS
* Experience developing smart contracts on non-EVM blockchains
* Experience building dApps end to end

# Our Stack

Rust, Solidity, Typescript, AWS

# Our Principles

At Chainlink Labs, we’re committed to the key operating principles of ownership, focus, and open dialogue. We practice complete ownership, where everyone goes the extra mile to own outcomes into success. We understand that unflinching focus is a superpower and is how we channel our activity into technological achievements for the benefit of our entire ecosystem. We embrace open dialogue and critical feedback to arrive at an accurate and truthful picture of reality that promotes both personal and organizational growth.

# About Chainlink Labs

* Chainlink is the industry standard oracle network for connecting smart contracts to the real world. With Chainlink, developers can build hybrid smart contracts that combine on-chain code with an extensive collection of secure off-chain services powered by Decentralized Oracle Networks. Managed by a global, decentralized community of hundreds of thousands of people, Chainlink is introducing a fairer model for contracts. Its network currently secures billions of dollars in value for smart contracts across the decentralized finance (DeFi), insurance, and gaming ecosystems, among others. The full vision of the Chainlink Network can be found in the Chainlink 2.0 whitepaper. Chainlink is trusted by hundreds of organizations—from global enterprises to projects at the forefront of the blockchain economy—to deliver definitive truth via secure, reliable data.  
* This role is location agnostic anywhere in the world, but we ask that you overlap some working hours with Eastern Standard Time (EST).
* We are a fully distributed team and have the tools and benefits to support you in your remote work environment.

Smart Contract Engineer

WalletConnect is the open-source web3 standard to connect blockchain wallets to dapps. Any wallet, any dapp, any chain. Starting in 2018, our mission is to make web3 accessible to everyone. Every month, millions of people use WalletConnect in over 300 integrations. We just raised our $11M Series A from USV, Coinbase and other leading investors, and are looking to grow.

# The Role

As a Javascript Blockchain Engineer, you will join our small team and develop and maintain the Javascript SDK implementation of the WalletConnect protocol. You have a passion for open-source software, and will work on code that is deployed throughout the web3 ecosystem. The role involves implementing new features from protocol specifications, creating documentation, as well as client testing. The position is full-time and completely remote.

# Responsibilities:

* Read and understand a protocol specification and be able to break it into issues and turn it into code
* Refactor and improve existing features in the client
* Ensure the client stays compatible with the other client implementations
* Develop and publish helper packages on NPM for blockchain JS libraries

# Must have:

* 3+ years professional experience in software development at least one modern programming language, including Javascript, TypeScript, Golang, C++, Java, or Rust.
* At least 1 year of professional Javascript or Typescript experience.
* Experience with Websocket APIs and JSON-RPC protocol

# Nice to have:

* Experience with blockchain protocols, whether it be usage of a blockchain API, knowledge of how a blockchain operates, or any other experience
* Experience with blockchain-related libraries, such as Web3.js and/or Ethers.js
* Experience with documenting a large codebase, both for internal and user-facing components
* Familiarity with open-source software principles
* Experience writing software from a technical specification or a reference implementation
* Experience with building and publishing npm libraries (we use Webpack / Rollup)

# What WalletConnect offers:

* Fully remote position
* Competitive salary
* Remote work allowance
* Company equity
* Token offering

Javascript Blockchain Engineer

We are a team of world class builders and researchers with expertise across several domains: Ethereum Protocol Engineering, Layer-2, Decentralized Finance (DeFi), Miner Extractable Value (MEV), Smart Contract Development, Security Auditing and Formal Verification.

Working to solve some of the most challenging problems in the blockchain space, we frequently collaborate with renowned companies, such as Ethereum Foundation, StarkWare, Gnosis Chain, Aave, Flashbots, xDai, Open Zeppelin, Forta Protocol, Energy Web, POA Network and many more.

We actively contribute to Ethereum core development, EIP's and network upgrades together with the Ethereum Foundation, and other client teams.

Today, there are nearly 200 of us working remotely from over 45+ countries.

As a Blockchain Data Engineer, you'll be responsible for building and maintaining the data infrastructure for the DeFi projects Nethermind is involved in. You'll write and maintain ETLs and their orchestration in order to build meaningful products and APIs.

# The role:

* Building bespoke data infrastructure for various projects.
* Crawl and ingest data from various blockchains.
* Create scalable systems to solve different problems using modern cloud technology and industry best practices.
* Design database schema that is performant, scalable, and maintainable
* Assist with data analysis queries, carrying out data analysis on the infrastructure.

# You have:

* Experience/strong interest in blockchain
* Experience in greenfield data engineering projects, specifically in data infrastructure projects.
* Advanced knowledge of modern data pipeline architecture and cloud platforms, e.g. AWS/GCP/Azure.
* Proven success in communicating with users, other technical teams, and senior management to collect requirements, and describe data modeling decisions and data engineering strategies.
* Hands-on design experience with data pipelines, joining data between structured and unstructured data.
* Knowledge of data pipeline tools (e.g. Snowflake/Redshift/BigQuery, AWS lambda/S3, Apache Airflow, Spark/Hadoop etc.).
* Comfort with one or more: Python/Scala/Java/Golang
* Comfort writing SQL queries.

# Nice to have:

* Knowledge of software engineering best practices across the development lifecycle, including agile methodologies, coding standards, code reviews, source management, and build processes.
* Comfort with infrastructure as code, Terraform/Terragrunt
* Strong understanding of distributed systems and Restful APIs

# Perks and benefits:

* Fully remote
* Flexible working hours
* Plus equity

Java

Scala

Blockchain Data Engineer

As a Solidity Engineer, you will help us design and deploy our next generation of smart contracts. You will work closely with engineering leads, and partners to prototype smart contracts that extend our core architecture as well as lead efforts to upgrade and optimize our contracts running on EVM based networks. The goal is to create a suite of smart contracts that make up the Safe protocol, bringing the best UX and maximum flexibility to our users. Security is critical, so a strong attention to detail is a must.

* Location: Berlin, Germany
* Our Tech Stack: Solidity, Hardhat, Typescript

# What you will be doing:

* Develop smart contracts for the Safe protocol
* Iterate on existing smart contracts (e.g. core contracts)
* Evaluate and idea value capture opportunities on contract level
* Support external developers on contract usage (e.g. StackExchange)
* Document the Safe protocol approaches/ solution
* Collaborate with product team (Engineers, designers, stakeholders) on protocol/contract related features

# What you will bring:

* Experience with modern Solidity stack (hardhat, truffle, various plugins, package managers, linters, code cov etc.)
* Experience debugging and simulation of contract interaction with local nodes (e.g. hardhat and ganache,
* Proven experience with different Ethereum development platforms (e.g. Remix, Tenderly, OpenZepplin)
* Experience with Solidity libraries (e.g. Remix, Tenderly, OpenZepplin)
* You have worked on the projects that have been audited
* Testing knowledge (coverage, automation, integration)

# Nice to have skills:

* Expert in EVM details/design
* Deep knowledge in Ethereum RPC usage
* Familiarity with tokenomics
* Typescript for testing

Truffle

Berlin

Senior Solidity Engineer

There is a steep learning curve when it comes to crypto. Only once overcome will we have mass adoption. Aldrin Labs aims to debunk the belief that decentralized finance is inherently complex and separate from centralized finance. We will amend the frustratingly poor user experience and fragmentation that millions of crypto natives and newcomers face. We will seamlessly merge the centralized and decentralized world.

Aldrin Labs aims to be purposeful. We strive to halve the fifty working years of the average person. This is the mission of Aldrin Labs.

Aldrin Labs has Aldrin DEX and is incubating an innovative crypto wallet and money market. These protocols will integrate with each other to provide easy functionality and purposefully help people achieve financial freedom.

Aldrin Labs is well funded ($8M) and aggressively looking to expand our 30+ employee count.

Aldrin Labs is a fully remote company. We are interested in capturing the best talent, no matter where you live.

# The Role

We’re looking for a Senior Front-End Developer Web3 (Remote) to develop front-end applications for Aldrin’s new products, including but not limited to our centralized and decentralized exchange platform, as well as other internal applications, as necessary.

# You will:

* Build, deploy, and mature user-friendly, highly secure, maintainable, high-performance scalable interfaces, and client-facing UI systems
* Work closely with our product and design teams to develop new features from design to production
* Have an entrepreneurial spirit and bring ideas to front-end development
* Work effectively with a high degree of autonomy, but also enjoy working collaboratively in a team
* Understand the front-facing user experience of our products, and work alongside other team members to ensure that we utilize best principles/practices
* Design new and optimize existing systems and participate in design reviews

# Minimum Qualifications:

* 5+ years of experience in front-end development
* Expertise in front end development with React (ideally 5+ years or at minimum 3+ years extensive experience), with an understanding of React best practices, optimizations, and profiling
* Strong experience with GraphQL/Apollo/REST
* Verbal fluency in English
* Interest and enthusiasm for crypto markets, blockchain technology, decentralized finance, and the whole Web3 ecosystem

# Nice-to-Have Qualifications:

* Experience with TypeScript and JavaScript
* First-hand experience with Web3 front-end technologies and developing DeFi applications and/or FinTech applications
* Experience working with a large codebase and e2e testing like Cypress
* BS in Computer Science or equivalent

# Benefits

* Competitive salary
* Remote work in a dynamic, fast-growth Web3 startup
* Flexible working hours
* Opportunity to work with a diverse, global, and passionate team
* Collaboration with leading projects and thought leaders in the crypto space

GraphQL

Senior Front-End Developer Web3

DXdao is a decentralized collective that builds and governs DeFi protocols. Founded in 2019, DXdao’s product suite includes:

* Swapr, a governance-enabled multi-chain AMM with custom liquidity mining rewards creation and best-price trading features
* Carrot, a platform for community-driven programmable token incentives
* DXvote, a governance platform for DAOs made by a DAO. Reputation, token voting and holographic consensus
* Omen, a leading prediction markets platform

DXdao is an entirely on-chain organization. Everything from hiring decisions to product updates happen via on-chain proposals through its community-driven governance system, based on holographic consensus.

DXdao is building a suite of Web3 products. As such, it heavily relies on the technical expertise of Web3 developers with solid knowledge of building dApps on top of Ethereum. We are looking for a skilled Senior Web3 Front-End developer to join us at DXdao!

What you should be interested in doing:

* Interested in DeFi and solving complex problems (a background in finance/STEM preferred)
* Collaborating with others on writing, testing, and deploying maintainable code that interacts with the Ethereum blockchain
* Contributing to full-stack software development with an emphasis on front-end work
* Developing responsive web interfaces
* Ensuring the technical feasibility of UI/UX designs
* Optimizing front-end code for performance and scalability
* Working with designers to create pixel-perfect representations of visual comps

# DXdao is looking for:

* A DAO/DeFi enthusiast who believes in the power of decentralization
* An independent, self-starter who is comfortable working in a fast-paced environment
* A developer with solid experience in React (Typescript) and its ecosystem
* A developer who can write maintainable, high quality code
* Someone who has the ability to work in Agile environment (Scrum)
* A developer who can implement SOLID principles of SWE
* A contributor with excellent written and verbal communication skills

# What we offer:

* A competitive and transparent salary system that governs all DXdao contributors
* A global community
* A flexible remote working policy and working schedules
* Stipends to travel to and attend Ethereum gatherings around the world

Senior Web 3 Front-End Developer

As a Solidity developer at CPI Technologies your job will be working together with our team to bring the ecosystem concepts of our customers to reality. You’ll be designing tools used by some of the top blockchain projects. We’re excited to have you join our international team to help build exciting projects built on blockchain technology.

You’ll join our highly skilled engineering team and help us build world-class innovative products and services that create new capabilities in blockchain infrastructure. You’ll work closely with our CTO and Product Manager to design, build and deploy new features. 

# Responsibilities

* Be a key member of the technical team architecting and building CPI products and working with the entire organization to further the objectives of the company
* Interact with the EVM and writing high-quality, well-tested Solidity
* Comprehensive unit and integration tests
* Work with the engineering team to support customer technical inquiries
* Work with the team to guide the product roadmap
* Demonstrate and inspire a strong sense of teamwork
* Demonstrate and inspire integrity, quality, and professionalism

# Job requirements

* 1+ years of experience writing, testing, and/or auditing production grade Solidity contracts. You have deployed contracts to Mainnet
* 3-5+ years programming experience
* Understanding of the Ethereum Virtual Machine, gas optimization tradeoffs and security best practices
* Being able to work in a team environment and follow Agile processes.
* Written and spoken communication skills in English.
* Experience with lending protocols, DEXs, MEV, and more
* Ethereum blockchain test tools (e.g.Truffle, Embark, Hard Hat, etc.)
* Solidity and knowledge of ABI (eg. variable mapping to storage slots)

Solidity Developer

Developed to solve the inefficiencies seen in traditional systems, Maple brings the corporate credit market 100% on-chain using smart contracts to remove time and cost frictions, and executed on blockchains for immutability.
  
Maple Finance is infrastructure for experts (pool delegates) to run on-chain lending businesses, and have three core customers Borrowers, Lenders and Pool Delegates. Maple offers Borrowers transparent, capital-efficient financing. For Lenders, Maple offers a sustainable yield source through lending to diversified pools of crypto’s premium institutions. Loans are managed and underwritten by sophisticated teams of credit analysts called Pool Delegates, who assess credit-worthiness and set loan terms with Borrowers.  

# The Team

Today the Maple team is 40+ strong, with staff from BlockFi, Kraken, Meta, Bank of America, Gemini and MakerDAO to name just a few blue-chip orgs. Team profiles are shared on our site here!

Remote anywhere in EST or Europe

# The Role

We are looking for a mature and talented Senior Web Developer that has several years' of first rate commercial experience. The position requires you to have a deep understanding of React, TypeScript and GraphQL. You will be working with 4 other developers on the Off Chain team in agile 2 week sprints on V2 of the web application stack.

This is a critical position requiring you to take ownership of key projects using React applications, Apollo GraphQL APIs and Graph Protocol indexed Ethereum state.

The right candidate will be truly passionate for the craft of software development. The role demands the highest standards of tested, linted and formatted code. We are a fully remote team located across Europe, the US, and Asia. We have two daily stand ups at 10am CET and 9:30am EST, this ensures  suiting the individual team members core working hours.

# The Opportunity

This role puts the right candidate at ground zero of a Global Capital Markets platform for the future of Institutional Credit and they will heavily impact/influence the further development of it over the coming years. In just 4 months Maple V1 has surpassed $170 million of USDC deposits into the protocol via the web application, the concept is proven and we are leveling up dramatically.

We require a developer with high Code Quality standards to match the scope of our vision to expand the digital economy. In this role you will build the innovative features that our users will find the most valuable. To achieve this you will be using the most cutting edge tech & tools available, in these fast exciting times of Web3 exploration!

# Responsibilities

* Design and implement a functional user-friendly experience
* Collaborate with Product, Design, and Engineering teams to define, prioritize and develop solutions/features
* Own and plan projects and products end to end for long-term impact – including UI, backend, testing, etc.
* Reviewing application requirements and interface designs.
* Developing and implementing highly-responsive user interface components using React concepts.
* Troubleshooting interface software and debugging application codes.
* Monitoring and improving front-end performance.
* Documenting application changes and developing updates.
* Coding out a Landing page with good knowledge of HTML and CSS fundamentals.

# Requirements

* JavaScript and TypeScript ninja with a minimum of 5 years professional experience
* Expert level React with preference for working with hooks
* Open Source software development experience with expert Git and Github skills
* Advanced knowledge of GraphQL backends
* Deep understanding of software documentation procedures
* Preference for Test Driven Development (TDD) and highly testable code
* Apollo Federated Gateway API knowledge
* Ethers.js, MetaMask, WalletConnect and other Web3 technologies on Ethereum.
* Great if you've used Graph Protocol and Ethereum blockchain indexing tools
* Fluency in English

# What's in it for you

* Base salary of $140K+ per annum. Paid in your choice of crypto (USDC) or local fiat currency
* MPL token allocation, giving you a stake in Maple’s long term success
* 30 days paid time off per year
* Fully remote and flexible working giving you the autonomy to live and work your way
* Optional access to shared working space at your local WeWork or equivalent
* Contract or full time employment opportunities including all local statutory benefits
* Fully transparent and collaborative team culture
* Funding for personal skills development
* Annual team offsite events

# Our Tech Stack

All:
* TypeScript
* NodeJS
* Ethers.js
* Hardhat
* Docker
* Solidity

Frontend:
* React

Backend:
* Graph Protocol
* GraphQL

Devops:
* Terraform
* Bash
* GCP/AWS

Senior Full Stack Web Developer

Vital Hint is proud to introduce ClubRare - The World's first community-centered Physical NFT marketplace for collectors. We connect the Real-world and the Metaverse. We are a community for people who trade the things we love.

We are a fully remote company with no fixed headquarters. The team is distributed throughout the world - we form an inclusive network across a variety of locations, lifestyles, and backgrounds.

Our culture is driven by empathy, integrity, strategic thinking, innovation, leadership, and the shared desire to perform at our peak. While our differences make us adaptable and versatile, it's our shared values that give us the strength and drive to become the open metaverse for collectors.

# What’s in It for You?

* Be part of building a great project and make a real impact in your career.
* Work flexible hours from anywhere and be part of a team that is driven by strong values and a clear shared vision.
* Directly shape the future of a completely new model for cryptocurrency and blockchain applications.
* Challenge your skills and push your creative limits working with the latest technologies & systems.
* Play an active role in one of the most significant technological innovations in human history.
* Receive a competitive salary paid in crypto.

# Your Impact

We are looking for a Blockchain Developer or a Smart Contract developer to join our technology team. Our ideal candidate will have to understand the value of clear and performant code as well as want to define the leading solution. They will relish the opportunity to build a new category of computing platform and desire to build a thriving open source ecosystem. You will have demonstrated expertise with distributed infrastructure development, as well as the curiosity and creativity to explore new approaches to complicated problems. Most importantly understand the value of a developer-friendly infrastructure while breaking new ground in a quickly-evolving space.

# Responsibilities:

* Explore design implications around smart contracts and their interactions with each other.
* Work with the Product team to explore feasibility and design of the decentralization of various processes.
* Take ownership from the ideation phase to deployment and management.
* Develop host and back-end systems for our NFT minting projects and the marketplace platform.
* Optimize web applications for maximum performance across a variety of devices including desktops, tablets and smartphones
* Build reusable components and libraries to speed up development efficiency
* Collaborate with your team to guarantee streamlined implementation of applications

# Requirements

* Experience in NFT marketplaces and/or decentralized cryptographic systems.
* 3+ years of experience coding with Solidity and utilizing the blockchain platform's library (e.g Web3.js for Ethereum).
* Bachelor/Masters degree in computer science, engineering or equivalent industry experience.
* Proven track record of delivering projects with high quality, maintainable code
* Focused on delivering impact and results to the makers and consumers who will benefit from this new ecosystem.

NFT Smart Contract Developer

Rolla is building a cutting-edge DeFi Options trading protocol that’s extremely user-friendly, designed to bring high yield generation strategies to everyone in crypto while abstracting the complexities of DeFi and derivatives. 

Our team is a tenacious, geeky, and optimistic group, working towards a decentralized financial future. You’ll be joining a highly technical team that values shipping beautiful, usable products to give people real control over their financial future. Our team members from Sushi, Polygon, BitTorrent, Adyen and commit to top 10 web2 and web3 core repos.

We’re also backed by the top investors and option market makers in the cryptocurrency space that believe in our vision. At Rolla, you’ll have access to industry leaders, developers, exchanges, and traders to collaborate and engage with as you pioneer the next frontier of DeFi.

# Responsibilities

* 3+ years of backend engineering experience.
* Experience working with Typescript, Node, and writing unit tests and integration tests.
* Experience in all stages of product development including technical planning, rigorous testing, and launch.
* Ability to write high-quality, well-tested code in an asynchronous environment.
* BSc/BA in Computer Science, Engineering, or a related field preferred.
* Experience working with Nestjs is a big plus.
* A passion for DeFi and Web3

# Rolla offer

* A truly rare opportunity to work on the bleeding edge of the future of decentralized derivative trading. You’ll be building products with the potential to give millions of people trustless yield on their money
* Great culture: highly ambitious, smart, friendly, non-hierarchical, collaborative, and entrepreneurial
* Top fixed compensation and token options. Get an early share of Rolla’s future token and be able to participate in Rolla’s upcoming DAO
* Flexible work hours and location, with the ability to work in person (preferred) with team members in Singapore
* World Class investors. We're backed by the top VC's in crypto and you'll have access to industry experts

# Write to us if you

* Have a strong entrepreneurial mentality
* Owner attitude, you focus on the ultimate result for the company, both short term, and long-term growth
* Tenacious, ambitious yet humble, willing to work hard, take feedback and learn on the way
* A deep love for problem-solving and seeing the results of your work

Node.js

Senior Backend Engineer Web3

Join our team and work directly with the founders to build the future of Automation for the upcoming decentralized web. Enjoy a lot of perks, travel with us to cool events and participate in amazing off-side retreats with the team!

Participate in creating the most sophisticated crypto bot network ever created by designing the smart contracts that will rule them all!

We are a fully remote team and although we hire globally, there is a strong preference for this role to be based in Central Europe.

# What we offer:

* A fully remote team with team members in Zug, Paris, New York, Berlin, and many other cool places
* Join the "Gelato Legendary Member Club" and work directly with the founders
* Participate in building the infrastructure that aims to become the glue between all crypto networks and power the most promising dapps on Ethereum and beyond
* Generous Token Package - Get a share of the network's token and be able to participate in the Gelato DAO
* Chance to participate in shaping the future of web3 by working together with the biggest projects in this space, such as MakerDAO, Connext, Quickswap, etc.
* Worldclass Investors - We are backed by top class VCs and Angels including Dragonfly, Galaxy Digital, ParaFi, Gnosis, Stani Kulechov and many more!

# Requirements:

* Experience in writing smart contracts in solidity
* Experience with web3 libraries (ethers.js, web3.js) - preferably ethers.js
* Experience with testing your code locally and on ethereum test networks
* Experience with the hardhat development environment
* Experience deploying contracts to production environments like mainnet or polygon
* Experience with writing subgraphs for indexing contract data
* Experience using dapps like Uniswap, Aave, or Maker.
* You can work with high autonomy
* Strong written and verbal communication skills

# Bonus:

* Knowledge about the inner workings of the EVM
* Mathematics & Finance Background
* Experience in building and running bots that interact with smart contracts on Ethereum
* Knowledge about Ethereum Client & Mining software
* Front-end experience, building dApps on existing smart contracts

# Technologies we use and teach:

* Solidity
* Node.js
* Typescript
* Javascript
* Ethers.js
* Hardhat
* React

# Benefits

* Unlimited holiday (yes you heard that right!)
* Work very autonomously
* Generous GEL token package
* Competitive Salary
* Work together with one of the best technical teams on Ethereum
* Build relationships with top blockchain teams which are already Gelato users, including MakerDAO, Instadapp, Zerion, Quickswap and many more
* Chance to travel the world to go to exciting events and connect with key players in this industry
* Join amazing in-person offsites all over the world

The mission of Trust Machines is to build the largest ecosystem of Bitcoin applications and grow the Bitcoin economy. We’ve recently raised $150M to realize this vision, build Bitcoin apps, and the open source technologies required to unleash the true potential of Bitcoin as a final settlement layer. Trust Machines is doubling down on Bitcoin and Stacks, a programming layer for Bitcoin, to help make it faster and easier to develop on, while building applications that make Bitcoin productive. 

Trust Machines is looking to hire a Bitcoin core developer to contribute to Bitcoin core and collaborate on Bitcoin software maintenance and development. In this role you’ll collaborate with the broader Bitcoin community, assist in technical assessment and implementation of BIPs, and join the Trust Machines team as an expert and advisor in Bitcoin development. This role is part researcher, part teacher, and provides a lot of room for independence, self sufficiency, and creativity.  

# What You’ll Do:

* Work on Bitcoin and Lightning development 
* Experience with and commitment to the open source Bitcoin ethos 

# What We’re Looking For:

* Extensive experience in C/C++. Interest in learning Rust. 
* Deep knowledge of the crypto space and underlying technologies 
* Experience with automated testing and unit tests 
* Strong technical documentation skills 
* Advanced knowledge of cryptography concepts 
* Strong communication skills 
* Sense of ownership and independence 

# We’d Also Like to See:

* An openness to new ideas and applications of blockchain technology