Senior QA Engineer at Tech Holding

<div class="content-intro"><p><strong>About us:</strong></p> <p>Working at Tech Holding isn't just a job, it's an opportunity 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.&nbsp; 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.</p></div><div><strong>About the Role</strong><br>We are looking for a <strong>Senior QA Engineer (SDET)</strong> to support a critical automation projects. This role will focus on <strong>API testing, automation, and end-to-end quality assurance</strong> across the transaction lifecycle.<br><br><br><strong>Key Responsibilities</strong></div> <ul> <li><strong>API Testing</strong><br> <ul> <li>Perform <strong>API testing</strong> for integrations using tools like <strong>Postman / REST clients</strong>.</li> <li>Test <strong>routing logic.</strong></li> </ul> </li> <li><strong>Test Automation &amp; Quality Engineering</strong> <ul> <li>Extend and maintain <strong>automated test suites</strong>&nbsp;workflows and APIs.</li> <li>Build <strong>API automation frameworks</strong> (using JavaScript, Java, or Python).</li> <li>Integrate automated tests into <strong>CI/CD pipelines</strong> for continuous validation.</li> </ul> </li> <li><strong>Functional &amp; Edge Case Validation</strong> <ul> <li>Test <strong>success, failure, and edge-case scenarios</strong> (timeouts, retries, duplicate transactions).</li> <li>Validate <strong>idempotency and error handling mechanisms</strong>.</li> <li>Perform <strong>exploratory and manual testing</strong> for complex workflows.</li> </ul> </li> <li><strong>Data Validation &amp; Reconciliation</strong> <ul> <li>Validate <strong>transaction data across APIs and databases</strong>.</li> <li>Write and execute <strong>SQL queries</strong> for backend validation.</li> </ul> </li> <li><strong>Performance &amp; Reliability Testing</strong> <ul> <li>Conduct <strong>basic load and performance testing</strong> for payment APIs.</li> <li>Validate system behaviour&nbsp; under <strong>high transaction volume</strong>.</li> <li>Monitor and report <strong>latency, failure rates, and retries</strong>.</li> </ul> </li> <li><strong>Production Rollout &amp; Monitoring</strong> <ul> <li>Support <strong>production deployment validation</strong> and pilot rollout.</li> <li>Monitor <strong>transaction success rates and error logs</strong> post-release.</li> <li>Collaborate on <strong>issue triaging and quick resolution</strong>.</li> </ul> </li> </ul> <div><strong>Requirements</strong></div> <ul> <li><strong>5+ years</strong> of QA experience with strong focus on <strong>API and backend testing</strong>.</li> <li>Hands-on experience with <strong>API testing tools</strong> (Postman, REST Assured, etc.).</li> <li>Good to have experience with <strong>Playwright</strong></li> <li>Experience in <strong>test automation</strong> using <strong>JavaScript, Java, or Python</strong>.</li> <li>Experience with <strong>SQL and database validation</strong>.</li> <li>Knowledge of <strong>CI/CD pipelines</strong> and automation integration.</li> <li>Understanding of <strong>HTTP protocols, REST APIs, and JSON</strong>.</li> <li>Familiarity with <strong>error handling, retries, and distributed system behaviors</strong>.</li> <li>Strong analytical, debugging, and problem-solving skills.</li> </ul> <div><strong>Good to Have</strong></div> <ul> <li>Experience with <strong>performance testing tools</strong> (JMeter, k6, etc.).</li> <li>Exposure to <strong>Agile/Scrum methodologies</strong>.</li> </ul><div class="content-conclusion"><p>Tech Holding is proud to be an Equal Opportunity Employer and is committed to fostering a diverse and inclusive workplace. We welcome applicants from all backgrounds and experiences, and we consider qualified applicants without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, disability, veteran status, or any other legally protected characteristic. If you require accommodation in the application process, please contact our HR&nbsp;</p></div>