About us:
Working at Tech Holding isn't just a job, it's an prospect to be a part of something bigger. We are a full-service consulting firm that was founded on the premise of delivering predictable outcomes and high-quality solutions to our clients. Our founders and team members have industry experience and have held senior positions in a wide variety of companies – from emerging startups to large Fortune 50 firms – and we have taken our combined experiences and developed a unique approach that is supported by the principles of deep expertise, integrity, transparency, and dependability.
About the Role
We are looking for a Senior QA Engineer (SDET) to support a critical automation projects. This role will focus on API testing, automation, and end-to-end quality assurance across the transaction lifecycle.
Key Responsibilities
API Testing
Perform API testing for integrations using tools like Postman / REST clients.
Test routing logic.
Test Automation & Quality Engineering
Extend and maintain automated test suites workflows and APIs.
Build API automation frameworks (using JavaScript,
Java, or Python).
Integrate automated tests into CI/CD pipelines for continuous validation.
Functional & Edge Case Validation
Test success, failure, and edge-case scenarios (timeouts, retries, duplicate transactions).
Validate idempotency and error handling mechanisms.
Perform exploratory and manual testing for complex workflows.
Data Validation & Reconciliation
Validate transaction data across APIs and databases.
Write and execute SQL queries for backend validation.
Performance & Reliability Testing
Conduct basic load and performance testing for payment APIs.
Validate system behaviour under high transaction volume.
Monitor and report latency, failure rates, and retries.
Production Rollout & Monitoring
Support production deployment validation and pilot rollout.
Monitor transaction success rates and error logs post-release.
Collaborate on issue triaging and quick resolution.
Requirement