Stephen Ogunseyin cover
Stephen Ogunseyin
Stephen Ogunseyin

Senior QA Engineer and Test Lead

Actively looking · Member since 21 Oct 2026
Location
Abu Dhabi, United Arab Emirates
Desired salary
6000–7000 GBP/monthly
Work preference
Remote Only / Full Time, Contract
Experience level
Senior

About

Professional summary

I am a Senior QA Engineer and Test Lead with over ten years of experience testing software for government and enterprise organisations in the UK and UAE. I specialise in quality strategy, test automation, API testing, security testing, and complex cloud and data migrations.

I currently lead a four-person QA team at Presight AI in Abu Dhabi, delivering quality assurance for AI-powered analytics platforms used by government audit authorities. I have built Playwright and TypeScript regression automation from scratch, reducing manual regression effort by approximately 40%.

I have strong hands-on experience with functional, integration, regression, end-to-end, UAT, exploratory, risk-based, data migration, ETL, mobile, accessibility, and AI agent testing. I am particularly experienced in testing REST and SOAP APIs, validating data integrity, and working with SQL-based systems.

Security assurance is one of my core strengths. I have retested penetration-test findings across OWASP risks including RBAC bypass, IDOR, CSRF, XSS, SQL injection, JWT handling, and rate limiting, verifying fixes for critical vulnerabilities.

I have delivered automation and quality assurance across AWS, Azure, on-premises, and containerised environments. I work effectively in Agile teams, mentor junior testers, collaborate with developers and security teams, and help ensure releases and migrations are delivered on schedule.

Notice period: Immediate

Skills

41 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Application Utilities

Collaboration

Data Stores

Marketing and Sales Tools

Monitoring

Experience

Career history

Senior QA Engineer Presight AI

I lead core QA activities for an AI data analytics platform used by government audit authorities in Abu Dhabi. I manage day-to-day work for a four-person QA team, allocate testing across AMS, EDS, and SU applications, review test assets, and coach colleagues in API security testing and automation.

I led regression, integration, data, dashboard, and migration testing for a cloud-to-on-premises Azure migration that went live on schedule. I built Playwright and TypeScript regression suites integrated with GitHub Actions, reducing manual regression effort by about 40%. I also retested OWASP-related penetration-test findings, verified 21 critical fixes, maintained over 1,000 test cases, managed more than 800 defects, and tested an AI auditor agent end to end.

QA Engineer HMRC

I tested Managing Pension Schemes, a digital service replacing the legacy TPSS pension system. I supported migration of pension schemes and users to the new platform, enabling retirement of the old service.

I created more than 150 reusable Cypress and Scala automated tests and contributed to the supporting framework. I designed test data for over 600 REST and SOAP API scenarios, conducted mobile browser testing on real iOS and Android devices through BrowserStack, ran Jenkins regression and smoke packs, and logged more than 400 defects.

Software Developer in Test Disclosure Scotland (Scottish Government)

I worked on a criminal record checking service hosted on AWS. I developed Selenium automation using Java and the Page Object Model, alongside Postman API tests executed through Jenkins.

My work helped increase test coverage by 90%. I tested Salesforce modules across more than 350 cases, tracked over 400 defects to resolution, performed front-end and back-end SQL validation during migration from a legacy system to an AWS platform, and supported incident investigation and root-cause analysis.

QA Engineer HMRC

I provided QA for the SoFT programme, which migrated an on-premises IDS database, ETL processes, and reporting services to AWS. I performed functional, regression, integration, and acceptance testing for the migration.

I health-checked Pentaho and Oracle ETL feeds using mocks and stubs, performed reconciliation and job-scheduler testing, and developed an automation framework based on requirements and gap analysis.

QA Engineer Disclosure Scotland (Scottish Government)

I tested the online PVG service, used by more than 100 organisations. I created and maintained Selenium Java and Postman tests executed through Jenkins.

I performed accessibility testing against WCAG AA requirements and helped establish multi-container test environments using Docker Compose. My work covered functional, API, automated regression, and platform quality assurance activities.

Automation Test Lead Sopra Steria (Ministry of Justice)

I worked as a contract Automation Test Lead supporting the migration of ExISS and Bichard7 from UK Cloud to AWS. I designed a Java and JUnit automation framework with mock services.

I also built a Cucumber and Selenium BDD layer and mentored junior testers through practical automation training and hands-on sessions.

Automation Test Engineer / Senior Developer in Test / Senior QA Automation Analyst / Automation Test BJSS, TrakCel, Whitbread, Piksel, Rail Safety and Standards Board

I held a series of contract and permanent automation testing roles across BJSS for Disclosure Scotland, TrakCel, Whitbread, Piksel, and the Rail Safety and Standards Board. My roles included Automation Test Engineer, Senior Developer in Test, Senior QA Automation Analyst, and Automation Test Analyst.

Across these engagements, I built and supported automated test solutions, contributed to quality assurance delivery, and worked with cross-functional teams on enterprise and public-sector software.

Education

Learning history

University of Ado Ekiti (now Ekiti State University)

Bachelor of Science, Computer Science

BSc in Computer Science.

ISTQB / ISEB

ISTQB Certified Tester, Foundation Level, Software Testing

ISTQB Certified Tester Foundation Level certification.

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