Senior QC Engineer (Automation)

Key Responsibilities

API & Backend Test Automation

• Design, implement, and maintain automated tests for RESTful APIs using JSON payloads.
• Build reusable, maintainable test code — not record-and-playback scripts.
• Validate request/response contracts, error handling, edge cases, and backward compatibility.

Financial & Transactional Logic Validation

• Create deep automated test scenarios for critical transaction flows:
• Wallet operations (debit, credit, rollback).
• Idempotency and duplicate request handling.
• Concurrency and race-condition scenarios.
• Validate business rules across multiple services and system boundaries.

Integration & System Testing

• Develop mock services and simulators to emulate Operator behavior, including:
• Invalid payloads and edge cases.
• Timeouts, retries, partial failures, and network instability.
• Execute end-to-end integration tests across services and databases.

Performance & Reliability Testing

• Collaborate with the Tech Lead to plan and execute load and stress tests (e.g. using k6).
• Validate system behavior under high throughput and concurrent requests.
• Identify bottlenecks, failure patterns, and data consistency risks.

Data Integrity & Observability

• Verify correctness of persisted data via database queries and transaction logs.
• Cross-check API responses against stored state and audit trails.
• Assist in validating logging, metrics, and traceability for production readiness.

CI/CD & Quality Gates

• Integrate automated test suites into CI/CD pipelines.
• Define and enforce quality gates for releases (functional, integration, and regression).
• Provide clear, actionable feedback to developers.

Quality Ownership

• Act as a quality partner for the Integration Team, not just a test executor.
• Proactively identify risk areas and propose test strategies.
• Raise issues early, clearly, and with evidence.

Required Qualifications:

• Experience: 5+ years in QA, with at least 2+ years focused on backend/API testing and automation.
• Programming Skills: Comfortable writing clean, structured test code (any mainstream language).
• API Expertise: Strong understanding of HTTP/HTTPS, REST principles, JSON payloads, and error handling.
• Distributed Systems Mindset: Familiar with concepts such as concurrency, consistency, isolation, retries, and idempotency.
• Tooling: Hands-on experience with tools such as Postman, k6, Docker, Git, and CI pipelines.
• Communication: Good English communication

Nice-to-Have

• Experience inFinTech, Banking, or Payment Systems.
• Experience testing high-volume transaction systems.
• Experience running tests in containerized or cloud environments.
• Knowledge of API security testing and OWASP API Top 10.
• Exposure to gRPC or event-driven architectures.

Compensation & Benefits:

• Supportive and flexible working environment
• MacBook provided
• Premium health insurance
• SHUI contributions which comply with local laws along with premium health insurance
• Guaranteed 13th-month salary
• 15 paid annual leave days per year
• Work from home 3 days/month
• Company trip, happy hour, free snack and coffee