Nana Kumi

About Nana Kumi

Senior QA Engineer with 5 years of experience in both manual and automation testing…

Experience

1. Senior Manual Tester

   Code and Theory

   Sep 2023 — Present

   Analyzed business and functional requirements to create test plans and cases for a global e-commerce platform migration, improving test coverage by 30% and reducing missed defects during UAT. • Executed functional, regression, smoke, exploratory, and cross-browser/device testing for a high-visibility digital banking revamp, ensuring 99.5% defect-free releases over three major sprints. • Collaborated cross-functionally with developers, designers, and product owners in Agile sprints to test a realtime media streaming platform, contributing to a 25% faster sprint delivery cycle. • Identified, logged, and tracked critical defects in JIRA for an enterprise publishing site built on AEM, reducing production defect leakage by 40% through early QA intervention. • Ensured pixel-perfect UI and UX alignment with Figma designs and WCAG 2.1 compliance for a government digital services portal, resulting in 100% accessibility compliance in audit. • Participated in Agile ceremonies while testing digital payment integration and user authentication for a fintech app, enhancing sprint test execution efficiency by 35%. • Supported UAT for a multilingual website rollout across 12 regions, enabling on-time delivery of localized experiences and reducing client-reported bugs by 50%. • Performed content and visual QA for over 30 marketing microsites and product pages, reducing QA feedback turnaround time by 45% during product launch timelines. • Conducted API validation using Postman for loyalty and payment workflows in a retail mobile app, identifying critical backend bugs early and reducing production incidents by 60%. • Validated mobile app responsiveness and performance across 20+ device combinations using BrowserStack, improving cross-device defect detection rate by 70%. • Mentored a team of 4 junior QA testers on manual testing best practices, which increased team productivity by 25% and reduced onboarding time by 50%.