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LI.FI logo
LI.FI

The multi-chain liquidity gateway. A DeFi middleware to build crypto-enabled businesses.

Senior Frontend Engineer – Perps

Frontend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 11-50H1B No SponsorCompany SiteLinkedIn

Location

Europe

Posted

73 days ago

Salary

€80K - €120K / year

Seniority

Senior

Bachelor Degree6 yrs expEnglishReactTypeScriptBlockchain / Web3

Job Description

Senior Frontend Engineer – Perps

LI.FI

• Build and maintain DeFi interfaces and integrations powered by LI.FI infrastructure. • Develop cross-chain user flows including bridging, swapping, and routing assets across multiple chains. • Implement onboarding experiences that connect users to decentralized perpetual future exchanges, such as Hyperliquid, enabling seamless asset movement and liquidity access. • Integrate frontend applications with LI.FI APIs, SDK, and widget. • Build data-rich interfaces that surface routing options, transaction status, and cross-chain execution details. • Collaborate closely with backend, product, and design teams to design robust cross-chain user experiences. • Ensure performance, reliability, and maintainability through testing, debugging, and optimization. • Contribute to frontend architecture and reusable UI components used across LI.FI products and integrations.

Job Requirements

  • 6+ years of frontend engineering experience
  • Strong experience with React and TypeScript
  • Experience building complex, data-heavy user interfaces
  • Previous experience working with DeFi applications, crypto infrastructure, or Web3 products
  • Understanding of perpetual futures trading infrastructure, with exposure to venues such as Hyperliquid, Lighter, Extended, or similar DeFi/CEX derivatives platforms.
  • Experience working with real-time data (WebSockets or streaming systems)
  • Strong understanding of API integrations and frontend architecture
  • Ability to translate designs from Figma into polished interfaces
  • Strong communication and collaboration skills
  • Nice to have
  • Experience building cross-chain or multi-chain DeFi applications
  • Experience with bridging, swaps, or liquidity routing systems
  • Open-source contributions or maintained public repositories

Benefits

  • 30 days of PTO
  • Flexible remote days
  • Flexible working hours
  • Equity participation from day 1
  • Entitlement to work computer (choice of equipment)
  • An annual 1,000€ personal development budget once you have worked 6+ months (pro-rated the first year)
  • A one-time 1,000€ remote budget to use on coworking, office setup, etc.

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