Mid/Senior QA Engineer

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November 7

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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

• Take ownership of QA planning and execution across Jumper.Exchange’s core features; from UI to API to cross-chain integrations. • Build, maintain, and scale automated testing frameworks with Playwright, Jest, and related tooling. • Work closely with engineering, product, and security to review requirements, test new releases, and improve our processes. • Investigate, reproduce, and help resolve production issues, driving real fixes, not just reports. • Monitor quality metrics and help shape continuous improvement initiatives. • Champion a “quality-first” mindset within the team, balancing speed with stability.

🎯 Requirements

• 3+ years of experience in QA or software testing, ideally in a fast-moving product company. • Strong hands-on experience with Playwright and Jest for automated and integration testing. • Solid foundation in API testing, CI/CD pipelines, and end-to-end quality practices. • Experience or curiosity for blockchain, DeFi, or cross-chain technologies. • Great communication and collaboration skills, you’ll be working with distributed teams across engineering, product, and design. • Analytical, detail-oriented, and proactive in spotting and solving quality issues. • Fluent in English and located within the EMEA timezone.

🏖️ 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.