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BTC Recruiter Company • Ho Chi Minh City, Vietnam
We’re looking for a Senior Automation QA Engineer to own quality for complex, high-throughput backend systems. This role focuses on API automation, transaction logic, integration testing, and system reliability — not UI testing.
What You'll Do Design and maintain automated tests
We’re looking for a Senior Automation QA Engineer to own quality for complex, high-throughput backend systems. This role focuses on API automation, transaction logic, integration testing, and system reliability — not UI testing.
What You'll Do Design and maintain automated tests for RESTful APIs (JSON-based).
Validate critical transaction flows: wallets, idempotency, concurrency, rollbacks. Build integration and end-to-end tests across services and databases.
Simulate edge cases: invalid payloads, retries, timeouts, partial failures. Support performance and load testing (e.g. k6) for high-volume systems. Verify data integrity, logs, and system observability. Integrate test suites into CI/CD pipelines and enforce quality gates. Act as a quality partner to engineering, proactively identifying risks.
What We're Looking For 5+ years QA experience, with strong focus on backend/API automation. Solid understanding of REST APIs, HTTP, JSON, error handling. Experience testing distributed systems (concurrency, retries, idempotency). Comfortable writing clean, maintainable test code. Hands-on with Postman, Docker, Git, CI/CD (k6 is a plus). Good English communication skills.
Nice To Have Experience in FinTech, Banking, or Payments. Testing high-traffic / high-transaction systems. API security testing (OWASP API Top 10). Exposure to gRPC, event-driven systems, or cloud environments. Show more Show less