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kingsley mutana

@kingsleymutana

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QA Engineer specializing in exploratory, regression, and API testing for fintech platforms.

Nigeria

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What I'm looking for

I’m looking for a QA role in high-volume, transaction-heavy products where I can own exploratory + regression testing, strengthen API quality, and ship automation/performance validation inside Agile teams.

I’m a QA Engineer with 3+ years of manual QA experience in live, transaction-heavy environments. I specialize in exploratory and regression testing across web platforms and devices, focusing on catching issues before users do.

I test APIs with Postman and use browser DevTools to investigate defects through network traffic inspection. I document bugs clearly in Jira using structured bug reports, including reproduction steps, expected vs actual results, and severity classification—so fixes move fast and clean.

I also build reliability through automation and performance testing. I’ve created Cypress automated regression suites from scratch to cut regression time from 2–3 days to under 4 hours per release, and I run k6/JMeter performance scenarios (load, stress, spike, endurance) to uncover critical failure modes under real concurrency.

Experience

Work history, roles, and key accomplishments

QA Engineer (Manual & API)

ISentry Technologies

Sep 2025 - Nov 2025 (2 months)

Performed manual, exploratory, and regression testing in a live TeamIQ intern management web application, validating 10+ REST API endpoints with Postman and investigating defects using browser DevTools. Logged 18+ Jira issues with structured reproduction steps and verified bug fixes across incremental builds ahead of UAT.

Exploratory testing Regression Testing Postman REST API Testing DevTools Jira Authentication Flow Testing Cross Browser Testing UAT Testing

QA Engineer (Manual & Exploratory)

Kechsoft Business Consult

Dec 2022 - Feb 2025 (2 years 2 months)

Delivered 2+ years of manual and exploratory QA on a transaction-heavy SaaS fintech payment platform, executing 390+ test cases across functional, regression, smoke, and UAT while catching 10–15 defects per sprint. Built a Cypress automated regression suite from scratch (reducing regression from 2–3 days to under 4 hours per release) and logged defects in Jira with clear API-level isolation using

Manual Testing Exploratory testing Regression Testing Smoke Testing UAT Testing API Frontend Defect Isolation Jira

Performance Test Engineer

Freelance

Mar 2026 - Present (3 months)

Conducted live performance and exploratory testing for Ternny’s travel itinerary web app, using k6 to simulate up to 200 concurrent virtual users across load, stress, spike, and endurance scenarios. Identified critical failure modes where p95/p99 latency thresholds were breached above 150 users and produced backend reliability recommendations for pre-release decisions.

Load Testing Spike Testing Endurance Testing P95 P99 Latency Analysis Performance Testing

Education

Degrees, certifications, and relevant coursework

Ambrose Alli University

Bachelor of Science, Civil Engineering

Completed a B.Sc. in Civil Engineering in 2022. Transitioned into software QA in 2022, applying structured problem-solving and analytical thinking to manual testing and defect investigation.