Extend LI.FI’s API stack to include Hyperliquid ecosystem projects and feature sets
Design, build, and maintain backend services using Node.js and TypeScript
Work with MongoDB, Redis, and MySQL to support high-throughput, low-latency trading workflows
Collaborate closely with the Expansion PM and other backend engineers to improve integrations, routing, and user flows, and help evaluate new opportunities for feature expansion
Ensure robust, high-quality backend code with a strong focus on scalability, performance, and reliability for same-chain and cross-chain trading
Participate in code reviews, system design discussions, and technical documentation

5+ years of experience in crypto, ideally building or integrating production-grade DeFi or trading systems
Strong backend engineering background with hands-on experience in Node.js and TypeScript
Database experience with MongoDB, Redis, and MySQL in performance-sensitive backend environments
Hyperliquid architecture familiarity: Understanding of builder codes (spot, perps), HIP-3, precompiles, and HyperEVM at a design level, with the ability to keep up with evolving documentation
Hyperliquid focus: Genuine interest in the Hyperliquid ecosystem; prior projects, integrations, or self-driven exploration are highly valued
Orderbook fundamentals: Solid understanding of orderbook mechanics and comfort working with programmatic trading features
EVM & integration patterns: Experience building backend systems that integrate with EVM-based protocols; frontend or modal design work is not expected
Independence: Ability to drive integrations and propose new features with minimal oversight while collaborating effectively in a remote-first team
Cross-chain experience: Background working with bridges or backend infrastructure supporting multi-chain environments is a strong plus

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.

Senior Backend Engineer – Perps

Key skills