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LI.FI · 1 day ago

Senior Backend Engineer (Fee Consolidation 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 across major blockchains. They are seeking a Senior Backend Engineer to design and maintain backend systems and APIs, focusing on crypto literacy and blockchain-aware system design.

BlockchainFinanceFinancial ServicesFinTechInformation TechnologySoftware

Responsibilities

Design, develop, and maintain backend systems and APIs, with a strong emphasis on clean, consistent, and evolvable API design

Build backend functionality that interacts with crypto-native concepts and workflows, informed by hands-on experience as a crypto user

Collaborate closely with frontend engineers and product to translate crypto-related requirements into intuitive, reliable backend interfaces

Contribute to the architecture of scalable and robust backend solutions that support partner-facing and internal use cases

Maintain high engineering standards through code reviews, strong abstractions, and clear, readable code

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

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

Build and maintain comprehensive automated test suites across backend services

Act as a senior technical contributor within the team, supporting design discussions and raising the overall technical bar

Document APIs, system behavior, and technical decisions for long-term maintainability

Qualification

TypeScriptNode.jsAPI designMongoDBRedisBlockchain experienceGitHubKubernetesAWSCloudflareSelf-directedEnglish proficiencyCommunication skillsCollaboration skills