Nsikak Gabriel

I’m a QA Engineer focused on building reliable software through security-minded testing, clear documentation, and automation that scales. At Heimdall Technologies, I secured financial system reliability across multiple browsers and device types while aligning test scenarios with OWASP and access control validation frameworks.

I validated 263 API endpoints across backend and mobile surfaces with zero missed regressions post-release, using structured Postman test suites and full defect reproducibility steps in TestRail. I also reduced post-launch errors by 35% by writing unambiguous, reproducible Jira bug tickets that improved developer handoffs and cut debug turnaround time.

To reduce manual effort without losing coverage, I owned end-to-end Selenium scripts in Python and replaced repetitive cycles across payment and checkout flows—delivering a 60% improvement in automated regression coverage. I apply risk-based test prioritization to block 95% of high-impact issues before production, and I benchmark performance/latency under variable workloads using k6.

Beyond QA, I’ve embedded QA thinking into frontend work as a QA-Embedded Frontend Developer, reducing production bugs by 20% on React components by testing against acceptance criteria before handoff. My projects reflect that same approach—fintech payment flow simulation with PCI-DSS checkpoint targeting, 45% fewer app crashes for a food delivery app, 60% less manual testing for real estate, 95% risk-based defect blocking for school management, and launch safety across e-commerce checkout flows.