QA Engineer

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November 14

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LI.FI

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API • Crypto • Fintech

LI. FI is a platform that provides developers with a single API to facilitate swaps, bridges, and zaps across major blockchains and protocols. The company aggregates decentralized exchange (DEX) aggregators, bridges, and intent systems to streamline trading across these platforms, thereby saving developers extensive hours of work. With a focus on security, LI. FI collaborates with trusted organizations for risk assessment and mitigation while offering monetization features like flexible fee structures. LI. FI supports trading across over 20 chains and provides customizable widgets for developers aiming for quick go-to-market solutions. The platform emphasizes DeFi infrastructure to accelerate crypto adoption.

11 - 50 employees

🔌 API

₿ Crypto

💳 Fintech

📋 Description

• Review and interpret DeFi protocol documentation and Solidity contracts to understand expected on-chain behavior • Validate the correctness of Zap VM executions by ensuring that both the inputs and outputs match the expected behavior of the underlying DeFi protocol’s smart contracts • Design and implement robust testing strategies for backend services, REST APIs, and protocol integrations • Collaborate with the QA team to uphold and evolve our testing standards across plugin development and compiler workflows • Ensure newly added features and protocol integrations meet strict quality and correctness criteria • Track, manage, and drive resolution for bugs—especially those related to protocol behavior, integration logic, and output discrepancies • Identify UX or product issues, communicate them clearly, and propose improvements • Work closely with the development team to ensure high-quality releases and consistent QA processes • Maintain clear and comprehensive test documentation, plans, and reports

🎯 Requirements

• 5+ years in QA, ideally focused on backend, API, or integration testing • Deep crypto-native understanding, including: • Ability to read DeFi protocol docs • Comfort interpreting Solidity contracts • Familiarity with on-chain transaction flows and protocol mechanics • Experience with Git, GitHub (Actions), TypeScript, Playwright, and Postman • Strong communication skills and the ability to work cross-functionally • Self-driven, detail-oriented, and able to work independently or collaboratively • Ability to understand development changes quickly and ensure compatibility across features • Bonus: experience with JIRA and QA automation tooling • A passion for DeFi and eagerness to continuously grow technically.

🏖️ 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.