Blockchain/Solidity Developer (Codefi)

As a Blockchain/Solidity Developer you will join a world class technical team, with State of the Art expertise in developing & delivering advanced decentralized applications across various crypto/DeFi use cases (NFTs, staking, lending/borrowing, trading/AMMs) and institutional use cases (digital assets and payments). You will join a multinational agile and product team where you will be responsible for the delivery of Solidity smart contracts and DApps in production to a wide range of users.

Required skills:

• 3+ years of experience as a Software Engineer
• 1y+ years of Solidity smart contract development experience
• 2+ years of as front-end or fullstack or backend developer (React, Node.js, ideally Typescript)
• Experience developing, deploying and running Dapps/smart contracts in production on Ethereum mainnet or L2/sidechain (ideally DeFi Dapps/protocols and/or token-based use cases)
• Knowledge of secure Solidity development patterns for tokens and DeFi protocols
• Good understanding of Javascript ethereum SDKs (web3,js, ethers.js)
• Good knowledge of most prominent ERC/EIP Ethereum standards
• Good knowledge of smart contract development tools/frameworks (Truffle, Hardhat)
• Experience using smart contract auditing tools (MythX, other)
• Experience working in CI/CD setup
• High quality and testing standards
• Good documentation practises

Bonus points for any of:

• Experience developing and contributing to open source projects
  (incl. but not limited to Solidity open source codebases)
• Familiarity with DeFi protocols mechanics and smart contract codebases, and/or digital assets/payments and other token standards like ERC-777/20/721/1155/1400 and existing open source implementations (OpenZeppelin, Universal Token, etc.)
• Knowledge/understanding of cross-chain interoperability techniques (HTLC, bridging)
• Knowledge/understanding of L2 technologies (ZK/optimistic rollups, PoS/PoA sidechains)
• Experience using smart contract auditing techniques (fuzzing, other)
• Deep knowledge/experience understanding of EVM
• BSc/MSc in Computer Science or related subject

Other skills to demonstrate:

• Excellent verbal and written communication in English
• Teamwork, flexibility, initiative, communication and organization
• Ability to share knowledge, train other developers
• Willingness to constantly learn & improve, challenging yourself to stay at the top of your game

Don't check all of the boxes? Don't sweat it. We’re passionate about building a diverse team of humans and as such, if you think you've got what it takes to create a world-class infrastructure and tools function in our chaotic-but-fun, decentralised, remote-friendly, start-up environment—apply anyway. While we have a pretty good idea of what we need, we're ready for you to challenge our thinking on who needs to be in this role.

About ConsenSys

ConsenSys is the leading Ethereum software company. We enable developers, enterprises, and people worldwide to build next-generation applications, launch modern financial infrastructure, and access the decentralized web. Our product suite, composed of Infura, Quorum, Codefi, MetaMask, and Diligence, serves millions of users, supports billions of blockchain-based queries for our clients, and has handled billions of dollars in digital assets. Ethereum is the largest programmable blockchain in the world, leading in business adoption, developer community, and DeFi activity. On this trusted, open source foundation, we are building the digital economy of tomorrow. To explore our products and solutions, visit http://consensys.net/. the Codefi product group

Codefi is at the forefront of the blockchain fintech revolution. It builds, deploys and runs critical applications across both Enterprise and crypto/DeFi, multiple blockchain verticals (digital assets, payments, data, markets, networks, staking, Ethereum 2.0), as well as ConsenSys’s other industry leading products, including MetaMask, Quorum and Infura. The Codefi team is composed of multiple decentralised product teams across all verticals distributed across Europe and US and working mostly remotely.

With our products like MetaMask, Infura, and Quorum serving as gateways for over a million worldwide users to interact with new blockchain and “DeFi” applications like Uniswap, Maker, Compound, we need innovative problem solvers who are interested in tackling the complex challenges that exist in the blockchain and financial ecosystems and scaling developer and user-facing systems to tens of millions of users.