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LI.FI · 3 days ago

Senior Backend Engineer (Partner Service)

United States

Full-time

Remote

Senior Level

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. They are seeking a Senior Backend Engineer to strengthen their engineering team with a focus on API design and system quality, contributing to the partner backoffice software.

BlockchainFinanceFinancial ServicesFinTechInformation TechnologySoftware

Responsibilities

Design, develop, and maintain backend systems and APIs, with a strong emphasis on clear, consistent, and well-versioned API design

Take ownership of API contracts and backend interfaces used by frontend applications and partner-facing systems

Contribute to the architecture of scalable and robust backend solutions that support growing usage and evolving product needs

Maintain high engineering standards through code reviews, thoughtful abstractions, and clean, readable code

Identify performance bottlenecks and optimize system behavior, data access patterns, and caching strategies

Implement and maintain monitoring, logging, and debugging tooling to ensure high availability and operational confidence

Build and maintain comprehensive test suites, including unit, integration, and end-to-end tests

Act as a senior technical contributor within the team, supporting other engineers through collaboration, reviews, and design discussions

Analyze complex technical problems and propose pragmatic, production-ready solutions

Document APIs, systems, and technical decisions to support knowledge sharing and onboarding

Qualification

TypeScriptNode.jsAPI designMongoDBRedisBackend architectureTesting principlesEnglish proficiencyCommunication skillsCollaboration skillsProblem-solving