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LI.FI · 1 day ago

Senior Backend Engineer - Perps

United States

Full-time

Remote

Senior Level

LI.FI is simplifying multi-chain DeFi for traditional financial institutions and fintechs by offering a unified API for on-chain liquidity. They are seeking a Senior Backend Engineer to integrate Hyperliquid functionalities into their API platform, focusing on backend development and core integrations.

BlockchainFinanceFinancial ServicesFinTechInformation TechnologySoftware

Responsibilities

Extend LI.FI’s API stack to include Hyperliquid ecosystem projects and feature set

Collaborate closely with the Expansion PM and other backend engineers to improve integrations, routing, and user flows; help evaluate new opportunities for feature extension

Ensure robust, high-quality backend code, focusing on scalability and reliability for same-chain and cross-chain trading

Participate in code reviews, system design, and documentation

Qualification

Hyperliquid architectureBackend engineeringTypeScriptCross-chain experienceOrderbook fundamentalsIndependenceCollaboration

Required

Familiarity with Hyperliquid's architecture: You understand builder codes (spot, perps), HIP-3, precompiles, and HyperEVM at a design level and keep up with evolving documentation

Hyperliquid focus: You should be passionate about the Hyperliquid ecosystem and be able to demonstrate your familiarity with the ecosystem — past projects or self-driven exploration are valued

Orderbook fundamentals: You grasp the mechanics of orderbooks and are comfortable working with programmatic trading features

Backend focus: Solid backend engineering background, especially with EVM and integration patterns; front-end or modal design work is not expected

TypeScript proficiency: Experience building scalable APIs and backend systems in TypeScript

Independence: Can drive integrations and new feature proposals with minimal oversight, collaborating effectively in a remote-first team

Cross-chain experience: Experience with bridges and backend infrastructure supporting a multi-chain environment is highly valued