Senior Backend Engineer - Hyperliquid

LI.FI is simplifying multi-chain DeFi for traditional financial institutions fintechs and service providers by offering a unified API to access all on-chain liquidity across major blockchains for best price same-chain and cross-chain swaps. We are a passionate team on a mission to enable a fairer more decentralised world. Apart from the tech we care a lot about user experience and aim to make complex technologies accessible to everyone.

A quick run-down of the job

Join LI.FI as a Backend Developer with a dedicated focus on integrating Hyperliquid functionalities into our API platform. This role is backend-only—no frontend or design work required—letting you shape core integrations at the infrastructure layer. The ideal candidate is excited about Hyperliquid and its protocols eager to help us distribute programmatic trading features (e.g. TWAP perps) to the broader DeFi ecosystem through performant backend systems.

Please note: You must be located in the EMEA region. Your application will not be considered otherwise.

What you'll do

• 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.

What makes a good candidate

• 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.

• Bonus: Familiarity with Solana Bitcoin or mobile backend development.

How we hire

We prioritize candidates who show genuine excitement for Hyperliquid and demonstrate technical familiarity with its protocols. Expect conversations where you can showcase prior Hyperliquid-related projects and discuss ideas for future integration work. We won’t require prior Hyperliquid work experience but will test your understanding through interview discussions and portfolio review.

Company culture

• Embracing the differences

  • Embrace your own differences

  • Respect and welcome the unique qualities of others

  • See others’ differences as an opportunity to grow

• Own it do it

  • Own tasks end-to-end

  • Hold yourself to a high bar for execution

  • Make bold decisions and be accountable

  • Understand your limitations and seek for help

• Fail forward

  • Try - don’t be afraid to fail

  • Learn - don’t make the same mistake twice

  • Adapt - grow with the experience

• Have fun together

  • Take the time to get to know and understand each other better

  • Don’t take yourself too seriously and keep it light-hearted

  • Fun should be coming from a place of love and respect

What you’ll get

• Annual team offsites (Thailand in 2023 and Vietnam in 2024 were a blast Marrakech in March 2025 was blast-ier; let’s see what happens in 2026!)

• 30 days of PTO

• Flexible remote days

• Flexible working hours

• Equity participation from day 1

• Entitlement to work computer (choice of equipment)

• An annual 1000€ personal development budget once you have worked 6+ months (pro-rated the first year)

• A one-time 1000€ remote budget to use on coworking office setup etc.

If you join us as an independent contractor you’re only entitled to the first five benefits of this list.

Application process

Setting yourself up for success starts with the application! Click here to discover valuable tips that will help you navigate our application process effectively.

LI.FI is an equal opportunity employer. We encourage individuals of all backgrounds to apply. Join us in our dedication to fostering a workplace that values and respects each team member's unique contributions.

Shortlisted candidates will undergo a comprehensive interview process including a people operations interview a take-home assignment a meet-the-team & founder interview and a reference check.

For more information visit our page detailing our hiring process!