Senior Automation QA Engineer

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.