Sr QA Engineer

Job Title: Senior QA Engineer

Experience Required: 8+ years

Location: Remote

Employment Type: Full-time

Job Summary:

We are looking for a Senior QA Engineer who can own the quality strategy, define testing standards, and ensure high reliability for a high-traffic enterprise website. You will work closely with engineering, product, and business teams to ensure seamless releases and high-quality deliverables. This position also involves mentoring QA teams and driving continuous improvement in testing practices.

Key Responsibilities:

• Own QA activities for .NET APIs, payment services, finance applications, and Zuora integrations from requirements review through production release.
• Analyze business and technical requirements, identify gaps and risks, and translate them into clear test strategies, test plans, scenarios, test cases, and traceability coverage.
• Perform functional, integration, system, regression, smoke, exploratory, and end-to-end testing across APIs and connected finance platforms.
• Validate REST APIs using tools such as Postman, including request and response payloads, HTTP status codes, headers, authentication, authorization, error handling, schema validation, and backward compatibility.
• Test payment and billing workflows such as authorization, capture, settlement, refunds, credits, cancellations, retries, failed transactions, duplicate prevention, idempotency, and exception handling.
• Verify webhooks, asynchronous processing, scheduled jobs, queues, callbacks, and cross-system data propagation, including retry and recovery scenarios.
• Perform database and data validation using SQL to confirm transaction integrity, field mapping, calculations, audit trails, and reconciliation between source and downstream systems.
• Design negative, boundary, concurrency, security-oriented, and failure-recovery test scenarios for financially sensitive services.
• Create and maintain reusable test data and test documentation while protecting sensitive financial and customer information.
• Log high-quality defects with reproducible steps, evidence, impact, and severity; partner with developers on troubleshooting, root-cause analysis, and verification of fixes.

Required Skills & Qualifications:

• 8+ years of experience in software quality assurance and testing.
• Strong expertise in manual testing, test planning, test execution, and defect management.
• Strong experience in API testing, preferably using Postman or similar tools.
• Solid understanding of SDLC, Agile methodologies, and release management.
• Experience testing enterprise, SaaS, and integration-heavy applications.
• Experience with database/data validation and SQL.
• Strong analytical and problem-solving skills with excellent attention to detail.
• Excellent communication, stakeholder management, and leadership skills.

Nice to Have / Plus:

• Automation Scripting : Experience writing or maintaining automation scripts using tools/frameworks such as Selenium, Playwright, or similar technologies would be a plus.
• UI & API Automation : Exposure to automated testing at the UI and/or API level and experience integrating automated tests into CI/CD pipelines would be advantageous.
• Performance Testing : Hands-on experience with performance, load, or stress testing using tools such as JMeter, LoadRunner, or similar tools would be a plus.
• Performance Analysis : Understanding of application/API performance metrics, response times, throughput, bottleneck identification, and performance test result analysis would be beneficial.