Senior Front-End Engineer - Crypto/Web3 ( Paris)

Candidate requirements

These are the minimum requirements a candidate must meet to be considered for this role.

• At least 5 years of experience working with Front-End technologies, with a focus on React and TypeScript
• Ability to architect secure, maintainable, and testable Front-End code
• Experience with blockchain technologies, cryptocurrencies, and Web3 development
• Proficient in client-side signing and handling crypto transactions (e.g., Bitcoin, Ethereum)
• Familiarity with Web3 libraries (such as web3.js, ethers.js) and wallet integrations
• Experience with decentralized applications (dApps) and understanding of blockchain protocols
• Ability to independently manage the full lifecycle of tasks, and take ownership of the quality of your work
• You have excellent communication skills and collaborate effectively with team members across disciplines
• Hands-on experience with automated testing is a plus
• Knowledge of Next.js is a plus
• Knowledge of browser extension development is a plus

Job responsibilities

• You will be a part of Web Front-End team which oversees all Web UIs for consumer side of the business such as Wallet, DEX and crypto on-ramp
• Maintain and continuously improve existing applications serving millions of users, as well as develop new ones for cutting-edge crypto solutions
• Integrate both Web2 and Web3 technologies and APIs to enhance wallet and decentralized exchange (DEX) functionalities
• Implement client-side signing and crypto transactions to ensure secure and seamless user experiences
• Collaborate closely with designers, Back-End engineers, and business stakeholders to deliver a best-in-class user experience
• Proactively collaborate with team members, sharing knowledge and ensuring efficient task distribution
• Advocate for best practices, code quality, and test coverage, while driving technical discussions within the team