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Rex Kumi

@rexkumi

Senior QA Engineer specializing in test automation, CI/CD integration, and quality strategy to accelerate reliable releases.

United Arab Emirates

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What I'm looking for

I’m looking for a team where I can own test automation architecture and CI/CD quality gates, drive shift-left testing, mentor engineers, and improve velocity and stability for end users.

I’m a Senior QA Engineer with 13+ years across FinTech, AdTech, SaaS, and creative technology, delivering digital product quality in both the UK and UAE. I build scalable QA functions and automation architectures that strengthen CI/CD integration, drive shift-left testing, and foster a DevOps quality culture—so teams ship faster with confidence.

Most recently, I delivered major automation impact by reducing the automation backlog by 25%, enabling end-to-end CI/CD gating, and achieving zero production bug leakage through stable Cypress and API-driven test data. I also lead migrations and roadmap execution, mentor engineers, and help reshape QA as a strategic enabler—while continuing to pursue ISTQB-CT- GenAI to expand my testing approach.

Experience

Work history, roles, and key accomplishments

Senior Automation QA Engineer

Easygenerator

Sep 2024 - Nov 2025 (1 year 2 months)

Delivered a 25% reduction in the automation backlog and established end-to-end CI/CD integration for the Learner fragment monorepo using GitHub Actions, achieving zero production bug leakage. Built 1,000+ automated tests with Cypress (TypeScript), led Cypress migration to remove flaky failures from dependency drift, and reached 100% automation coverage for new features and major changes pre-releas

Cypress TypeScript GitHub Actions CI CD Testing Automation Network Stubbing Test Automation

Senior Software Engineer in Test

Hogarth Worldwide

Nov 2021 - Sep 2024 (2 years 10 months)

Designed and implemented scalable Cypress-based automation frameworks in JavaScript and built Azure Load Testing and JMeter performance suites with metrics dashboards and performance gates. Mentored offshore QA teams and oversaw AR, cloud, CGI, security, visual, and performance testing to support client delivery for major brands including Ford, Taylor Wimpey, and Apple.

Cypress JavaScript JMeter Performance Testing QA Strategy Agile Testing

QA Analyst

Bionic

Aug 2020 - Nov 2021 (1 year 3 months)

Built Bionic’s first UI and API automation framework using Selenium and Java with POM and reusable utilities, enabling full regression coverage. Delivered the UKPower automation suite within the first week and improved detection of integration issues in microservice-based systems to accelerate regression cycles.

Selenium Java UI Test Automation Regression Testing Microservices Testing Test Strategy Automation Framework

QA Engineer

Taina Technology

Jan 2020 - Jul 2020 (6 months)

Introduced Selenium (Python) test automation for a client demo system, reducing manual validation cycles. Conducted end-to-end functional testing across web, mobile, and API layers to improve release confidence in a fast-paced fintech environment.

Selenium Python End To End Testing Functional Testing Web Testing Mobile Testing API Testing Test Execution

QA Engineer (BDD Automation)

Connectt

Dec 2018 - Dec 2019 (1 year)

Developed and managed BDD automation suites using Selenium (Java) with Cucumber, including reusable step libraries and TestNG smoke/regression grouping. Improved CI/CD reliability by integrating Jenkins and AWS with dynamic environment spins and artifact management, and was promoted to QA Lead to enhance team workflows and process governance.

Selenium Java Cucumber BDD TestNG Jenkins AWS CI CD Automation Smoke Testing

Release Coordinator & QA Analyst

Sky Media

Aug 2013 - Nov 2018 (5 years 3 months)

Managed the full QA lifecycle, including test planning, UAT, regression strategy, and release readiness checks for Sky’s Landmark Ad Tech platform. Trained analysts and junior testers on QA methodologies to improve team capability and release execution quality.

Test Planning UAT Release Management QA Coaching Quality Process Improvement Defect Readiness

Mobile Test Analyst

Barclays

Jan 2013 - Jul 2013 (6 months)

Conducted mobile functional testing for iOS and Android banking apps, including DDA and MI capabilities. Enhanced defect management by improving QA-Dev collaboration and Quality Center workflows.

Mobile Testing IOS Testing Android Testing Functional Testing Quality Centers DDA & MI Testing