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Joy Network

Frontend Engineer DeFi

Joy Network
France · Full-time · Entry

Responsibilities
  • Share the team’s vision, set priorities on the product roadmap, and ensure deadlines and production quality are met.
  • Bring innovative ideas to solve technical challenges.
  • Solve front-end challenges with creative and effective solutions.
  • Contribute to UI (web/mobile) development for the Wallets-as-a-Service platform.
  • Incorporate fintech and banking UX/UI best practices into crypto wallets.
  • Ensure secure, user-friendly passkey-based authentication experiences.
  • Develop and maintain SDKs for smooth client integration.
  • Implement responsive designs for optimal performance across all interfaces.
  • Apply and stay updated on security best practices for frontend components.
  • Review product code to ensure it meets specifications and requirements.
  • Maintain clear, concise technical documentation.
  • Address issues quickly and document resolutions.
  • Collaborate with teams to enhance software development practices.
  • Stay informed on new technologies and suggest improvements.
Requirements
  • 6+ years of experience as a Frontend Engineer or similar.
  • Skilled in TypeScript (or similar languages).
  • Expert in building UIs using React, Angular, Flutter or Vue.js.
  • Familiar with WebAuthn and passkey authentication.
  • Experienced in developing and maintaining SDKs.
  • Strong skills in error handling, debugging, and real-time notifications.
  • Knowledgeable in secure audit logging and financial UI best practices.
  • Solid understanding of cybersecurity principles.
  • Proficient with Git for version control.
  • Skilled in creating responsive, mobile-friendly user interfaces.
  • Proficient in frontend testing tools and workflows.
  • Committed to delivering user-focused designs.
  • Knowledge of web accessibility standards (WCAG).
  • Capable of rapidly prototyping UI concepts.
  • Strong problem-solving and idea advocacy skills.
  • Clear communicator and calm under pressure.
  • Entrepreneurial mindset with a professional approach.
  • Deep understanding of crypto wallets is a big plus.
Compensation & Package
  • Salary: €100,000-120,000 per year (full-time work contract).
  • Equity: 300-600 stock options (i.e., 0.1-0.2%) vested over 4 years.
  • Location: France or EU (fully remote with optional access to office)
  • Equipment: MacBook Pro and other work essentials.

Key Skills

Ranked by relevance

ui responsive cybersecurity prototyping typescript angular flutter react git
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Posted
Jul 04, 2025
Type
Full-time
Level
Entry
Location
France

Industries

Social Networking Platforms

Categories

Engineering Information Technology

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