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Project Eleven logo
Project Eleven

Building a quantum safe world

Senior Web3 Engineer

Web3Web3Full TimeRemoteSeniorTeam 1-10Since 2024H1B No SponsorCompany SiteLinkedIn

Location

United Kingdom

Posted

156 days ago

Salary

0

Seniority

Senior

Job Description

Senior Web3 Engineer

Project Eleven

• Own the development of user-facing blockchain applications with a strong focus on security, usability, and reliability • Design and implement high-quality user interfaces for interacting with blockchain wallets and transaction flows • Integrate frontend applications with security-critical core libraries without re-implementing sensitive logic • Ensure safe handling of user inputs, permissions, error states, and edge cases in blockchain interactions • Collaborate closely with backend, protocol, and security engineers to align UX with system constraints and guarantees • Build and maintain scalable component architectures and frontend state management solutions • Ensure applications meet high standards for performance, accessibility, and cross-platform compatibility • Participate in usability testing and iterate on designs based on user feedback and security considerations

Job Requirements

  • Strong proficiency in Typescript and modern frontend engineering (e.g. React or similar)
  • Production experience building and publishing browser extensions
  • Strong understanding of EVM/Web3 fundamentals e.g. wallet architecture, JSON-RPC, signature flows, integration with smart contracts
  • Security-minded with experience working with security-sensitive code e.g. key handling, signing flows, storage, encryption
  • Key experience consuming security-critical libraries
  • Demonstrated ability to deliver high-fidelity UI/UX
  • Strong design skills and attention to detail
  • Experience designing component libraries and UX flows
  • Obsession with customer experience and usability testing
  • High ownership and comfortable owning features end-to-end i.e. requirements → UI prototypes → Implementation → QA
  • Strong English communication
  • Experience with mobile development e.g. React Native, iOS development
  • Experience with ERC-4337 account abstraction
  • Awareness and understanding of post-quantum cryptography
  • Backend experience e.g. building lightweight supporting services in Node.JS or Rust
  • Prior experience using Viem and ZeroDev (or similar)

Benefits

  • Equal Opportunity Employment

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