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

Job Responsibilities: You will be a part of the Web Front-End team which oversees all Web UIs for the 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 Candidate Requirements: 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