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

bondex app
London

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

Desirable

  • 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
Posted 2025-06-01

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