LI.FI · 4 months ago
Senior Backend Engineer
United States
Full-time
Remote
Senior LevelLI.FI is simplifying multi-chain DeFi for traditional financial institutions and fintechs by offering a unified API for on-chain liquidity. The Senior Backend Engineer will lead the design and development of backend systems, collaborating with cross-functional teams to deliver high-quality software solutions.
BlockchainFinanceFinancial ServicesFinTechInformation TechnologySoftware
Responsibilities
Leading and actively participating in the design, development, and maintenance of backend systems and APIs
Architecting and implementing scalable and robust backend solutions that can handle growing user loads and evolving business needs
Maintaining high coding standards, conduct code reviews, and ensuring best practices for code maintainability and readability
Identifying bottlenecks and optimizing code and algorithms to improve system performance
Implementing monitoring and debugging tools to proactively identify and resolve issues, ensuring high system availability
Developing and maintaining comprehensive test suites, including unit tests, integration tests, and end-to-end tests, to ensure the reliability of backend systems
Providing guidance and mentorship to junior developers, helping them grow their technical skills
Analyzing complex technical problems and propose effective solutions to address them
Documenting code, APIs, and technical processes to facilitate knowledge sharing within the team and support onboarding of new developers
Qualification
Required
Must be located in the EMEA region
Strong TypeScript experience is a must
Extensive professional experience in a similar role (as senior or lead)
Understanding of document databases and caching
Experience in software design and architecture
Deep knowledge of testing frameworks and principles
Strong communication, collaboration, problem-solving and analytical skills
Proactivity, strong ability to work well within a team and to be self-guided on a day-to-day basis
Ability to write maintainable, scalable, production-grade code
Passion for new technologies and ability to autonomously evaluate them and make suggestions for improvement
Very strong verbal and writing skills in English to allow effective communication with team members and stakeholders in meetings and documents
Preferred
Previous working experience in the blockchain space, technical understanding of the EVM ecosystem (or other ecosystems) is a nice to have
Bachelor's or Master's degree in Computer Science is a plus
Experience with smart contract development is a plus
Proficiency in Golang is a plus
Benefits
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.
Company
LI.FI
LI.FI builds a multi-chain DeFi middleware for the application layer.
Founded in 2021
51-200 employees
Funding
Current Stage
Growth StageTotal Funding
$52MKey Investors
1kx
2025-12-11Series A· $29M
2023-03-30Series A· $17.5M
2022-07-11Series Unknown· $5.5M
Leadership Team
Philipp Zentner
CEO, Founder
Max Klenk
Chief Technology Officer
Recent News
2025-12-25
Tech Startups - Tech News, Tech Trends & Startup Funding
2025-12-12
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2025-12-12
Company data provided by crunchbase