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Senior Backend Engineer: Hyperliquid API IntegrationsFramework Ventures • United States
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Senior Backend Engineer: Hyperliquid API Integrations

Framework Ventures
  • US
    United States
  • US
    United States
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About

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 or APAC regions and have technical understanding of blockchain. 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.
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 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.
If you join us as an independent contractor, you’re only entitled to the first five benefits of this list.
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.
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  • United States

Languages

  • English
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