Magic Eden is the #1 NFT marketplace on Solana. Our mission is to be the ultimate destination for discovering, trading, and creating NFTs. In its first two months since launch, Magic Eden has done $200M+ in total volume and grew to become the dominant NFT platform on Solana.

# Roles & Responsibilities

* Build secure smart contract protocols and backend services to connect Magic Eden users with the crypto ecosystem
* Drive the standardization in crypto protocols by designing and defining interfaces
* Mentor and train other team members on smart contract best practices
* Participate in on-call rotation

# What we look for in you:

* 1+ year Experience with smart contract development
* 1+ year Experience with backend development
* Experience with blockchain and crypto (Solana, Bitcoin, Ethereum, DeFi etc.)
* Hands-on coding ability
* Interest and passion for contributing to the crypto ecosystem
* Interest and passion for building secure, robust, scalable infrastructure

Cryptocurrency

Smart contracts

Solana

Remote

Blockchain Engineer

* Novel problems and challenging technical tasks in a cutting edge field within the blockchain sector
* Help us build the ultimate cross-chain swapping solution
* Open and friendly office culture with regular informal activities
* Flat(ish) organisation structure with open and collaborative attitudes
* Relocation packages available

Chainflip is a blockchain project that uses multi-party-computation and threshold signature schemes to allow our decentralised validator network to secure assets across multiple arbitrarily differentiated blockchain networks, with the ultimate goal of allowing users to swap between various cryptocurrencies across multiple blockchains in a trustless and composable way.

This is an exciting engineering challenge, one that we’ve been working on for 3 years. It is a multidisciplinary exercise in distributed systems, decentralised finance, blockchain consensus mechanisms, cyber security, applied cryptography, and user facing applications. Our engineering team of 15 is on the lookout for additional people to tackle this challenge with us. We’re mostly office-based in Berlin, Germany, but offer flexible working arrangements and remote work for some part of the year.

# What’s the Job?

This role is open to a European based Senior Full Stack Engineer who wants to work in Web3. Experience in Typescript is ideal, but the role is open to everybody with Full Stack engineering knowledge and an interest in the Web3/Blockchain space.

If you join us, you will likely focus your efforts on several of these three projects depending on your skills and interests:

* State Chain Tooling: we are developing our own standalone blockchain using the substrate blockchain development framework. The Web team has been building out our own custom block explorer and other associated tooling necessary for a fully-featured blockchain project. Previous experience of working with complex type systems would be beneficial here, as would some knowledge of how blockchains work internally.
* The Swapping Interface: We are developing an on-chain trading system that requires the development of advanced web-based quoting systems that plug into real-time on-chain data and other data sources to quote prices and relay user intents to our blockchain.
* Scalability and Security projects: We need to develop a robust system for algorithmically detecting abuse of open web services called Brokers on our network.
* No matter which project you work on, you will be exposed to all of the tough problems and trade-offs that decentralised finance and blockchains have to offer.

# About the Rest of the Company

We are a Berlin-centric team with our own office space in the heart of Kreuzberg, but we have remote workers in a couple of countries in Europe, a new office in Dublin, and a team in Melbourne, Australia. We meet up as a whole team once a year, have a very open and flexible culture, and enjoy meaningful personal connections with one another. Our team has a diverse range of backgrounds and experiences to share, and hopefully you'll be able to share yours with us too.

The Web team itself is composed of four brilliant young engineers with plenty of experience working with our technologies already.

We offer all Berlin based employees standard employment contracts under German law. Those that work with us remotely outside of Germany are typically contractors. On top of that, there are benefits for public transport, gym memberships and personal development like language courses.

# Who Should Apply?

This is the role for you if you:

* Are based in Europe and are willing to relocate to Berlin
* Have 4+ years of professional full stack development experience
* Are interested in decentralisation and blockchain technology
* Have knowledge or experience with building and scaling systems
* Looking to push the boundaries of your knowledge in Web3

Salaries and Token packages on offer are commensurate with skill and experience. Please indicate your expected salary range when applying, and we will take that into consideration during the interview process.

Senior Full Stack Engineer For Web3

GamesCoin is looking for a passionate Smart Contract Developer (Solidity) (f/m/d) who enjoys working in a creative environment. If you are looking for a challenge in programming demanding, exciting and highly individual products, then we are looking for you! The ideal candidate should have solid smart contract proficiency, a keen understanding of financial concepts, and a consistent track record of solving critical engineering problems. Join our Team and be part of our history  helping us to go new ways and uncharted territories!

* Drive high-level decisions about our smart contract architecture
* Write well-documented, performant, clean and re-usable Solidity code
* Collaborate with designers, frontenders and other developers
* Work at a rapid pace with a large amount of ownership and autonomy 
* Performing code reviews to ensure quality

# YOUR PROFILE

* At least three years experience as a Software Developer
* You have 2+ years experience as Solidity Smart Contract Developer
* You have an advanced knowledge of Git, GitHub, TypeScript, Hardhat
* You have significant experience writing comprehensive smart contract test suites
* You have a strong working knowledge of Solidity design patterns and Solidity security best practices
* You have an in-depth knowledge of economics, finance, and the financial sector
* Great understanding of blockchain development for an Ethereum based Network
* Experience with solidity and other Web3 related technologies

# WHY US?

* We offer you a flexible working model. You will work remote or in one of our modern offices in Berlin, Hamburg or Frankfurt Main, which boasts a café, communal rooms & gaming lounge
* You will be a member of an experienced, helpful team in a challenging environment with flat hierarchies and leading-edge technologies
* We offer you a wide variety of tasks with a high level of individual responsibility and the opportunity to contribute your strengths and ideas with a great degree of creative freedom
* We want to achieve great things with your help and offer you a permanent employment contract
* Various benefits such as meal vouchers & sports allowance

Smart Contract Developer

Clutchy is an industry-leading Gaming and NFT marketplace on the SUI blockchain. As the first official marketplace partner of Mysten Labs, Clutchy works closely with all of the ecosystem's leading projects. Clutchy is home to an ambitious, cohesive, and high-achieving team that has exceeded all expectations since its inception with its dedication to innovation.

# The Role

We’re looking for an experienced Rust Developer.

# You will:

* Join the full life cycle of blockchain and related software development, including requirement gathering, design, coding, testing, deployment, documentation, and support
* Focus on core blockchain infrastructure, including relevant services, frameworks and libraries
* Contribute creativity and insight to solve both technical and business challenges
* Be involved with the development of DApps and tools
* Get experience in setting up and running blockchain nodeS

# Requirements

* 3+ years of professional experience in Rust
* Solid knowledge in computing theory including data structures, algorithms, database theory, and networking
* An ability to learn quickly and hit the ground running on a complex software project
* Verbal fluency in English
* Execution of open-source projects on known blockchain platforms such as Solana, will be a bonus
* Interest and enthusiasm for crypto markets, blockchain technology, decentralized finance, and the whole Web3 ecosyste

# Benefits

* Competitive salary + equity/tokens
* 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

Rust Developer (Web3)

We’re looking for an experienced software engineer to join the team responsible for Hardhat - our flagship product (5.7k stars on GitHub). Hardhat is a development environment for Ethereum software. It consists of different components for editing, compiling, debugging, and deploying smart contracts and dApps, all working together to create a complete development environment.

This is a fully-remote role, and we’re open to candidates applying within UTC-3 to UTC+4 timezones.

# There are two challenges that we focus on:

As Ethereum continues to evolve, we are dedicated to continuing to support the ever-changing developer needs by keeping Hardhat at the forefront of innovation and up-to-date

With Hardhat’s user base growing rapidly (70-100K MAU), we see every bug report and feature request as an opportunity to improve and deliver an exceptional experience. By staying on top of these challenges, we are constantly raising the bar for ourselves and inspiring others to do the same.

In this role, you'll have the opportunity to work closely with our Hardhat Team Lead to create cutting-edge functionality, eliminate bugs, and provide solutions for any issues that arise. You'll play a vital role in upholding our commitment to open-source software by actively contributing to the repository and collaborating with fellow developers, listening to feedback, and incorporating new ideas into our codebase, ensuring our software remains relevant and impactful. Through your efforts, you'll help us maintain our reputation for excellence and inspire others to join us in our mission.

# The skills we look for:

* Familiarity with the Ethereum ecosystem is required, as Hardhat is a key component of Ethereum developer tooling. Understanding how its different parts fit together is important for making sound technical decisions and tackling challenges effectively
* At least 5 years of experience as a software engineer
* Prior experience with dApp or Solidity development
* Knowledge and experience with Node.js and TypeScript
* We work remotely and mostly asynchronously, so the ability to take ownership and work with minimal direction is crucial
* Prior experience working in a remote and globally-distributed environment

# Tech stack:

* TypeScript
* Node.js
* Ethereum / EVM
* Solidity
* Ethers.js

# The advantages you can attain from this opportunity:

* You’ll have a chance to work on a core component of the Ethereum stack and support the entire Ethereum ecosystem to be more productive
* Contribute to Ethereum as a project
* Service the needs of high-profile projects that use Hardhat
* All of your work will be open-source, and you’ll have the chance to collaborate with other open-source projects (both inside and outside Ethereum)

Ethereum Tech Lead

OpenSea is the first and largest marketplace for non-fungible tokens, or NFTs. Applications for NFTs include collectibles, gaming items, domain names, digital art, and many other items backed by a blockchain. OpenSea is an open, inclusive web3 platform, where individuals can come to explore NFTs and connect with each other to purchase and sell NFTs. At OpenSea, we're excited about building a platform that supports a brand new economy based on true digital ownership and are proud to be recognized as Y Combinator's #3 ranked top private company.

When hiring candidates, we look for signals that a candidate will thrive in our culture, where we default to trust, embrace feedback, grow rapidly, and love our work. We also know how critical it is to celebrate and support our differences. Employing a team rich in diverse thoughts, experiences and opinions enables our employees, our product and our community to flourish. We are dedicated to equal employment opportunities regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. To help facilitate this, we support remote, hybrid or onsite work at either New York City, San Francisco or the Silicon Valley for the majority of our opportunities.

OpenSea is looking for an experienced, entrepreneurial and web3 native analytics engineer to help build out the core data definitions of web3 and help us (and others in the broader community!) create and maintain the best abstraction tables - interpretation layer - for NFT blockchain data. This individual will work closely with our Protocol, Marketplace and Platform Engineering teams, and be an active member of the web3 data community. 

# Responsibilities

* Help build and maintain both internal and external abstractions (e.g. on Dune) for core OpenSea and Seaport data tables
* Craft data transformation pipelines to combine various external datasets and internal datasets 
* Work closely with the Protocol team to understand and account for  the implications of protocol level changes on internal and external datasets 
* Work with external analytics providers such as Dune, Nansen, Reservoir, etc. to help move us toward common standards around attribution, data accuracy, etc.
* Create monitoring and alerting to ensure data fidelity
* Design a thoughtful system of redundancies and checks across internal and external datasets so we can have deeper insight in data accuracy 
* Dig deep into contract calldata and be extremely detail oriented to account for the many edge cases that will crop up  to ensure our on chain datasets are as accurate as possible

# Desired Experience

* 5+ years of experience in data engineering, including fluency with Python, Airflow and Snowflake
* Ability to interpret smart contract output and work closely with blockchain engineers to understand how to extract and standardize data from different contracts
* Crypto/web3 experience, including a love for the community, and/or a degen portfolio 
* Fluency with web3 analytics tools including making spells (DBT) in Dune and/or with Nansen/Google Bigquery
* Experience communicating effectively up, down and sideways across the company, with thoughtfulness around optimizing asynchronous communication and tailoring communication to different preferred styles
* Strong cross-functional skills and ability to operate under ambiguous and fast moving problem spaces
* Humility, humor, curiosity, resourcefulness and a relentless drive to grow and learn

If you don't think you meet all of the criteria below but still are interested in the job, please apply. Nobody checks every box, and we're looking for someone who is excited to join the team.

The base salary for this full-time position, which spans across multiple internal levels depending on qualifications, ranges between $175,000 to $225,000 plus benefits & equity.