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.

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.

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

frontend engineeringReactTypeScriptAPI integrationsFigmaWebSocketsstreaming systemscross-chain applicationsliquidity routingdata-heavy user interfaces

Soft Skills

communicationcollaboration