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I am a dynamic Principal Test Engineer and Automation Test Lead with 15+ years delivering end-to-end testing across fintech, payments modernisation, automotive SaaS, government and medical LIMS platforms. I specialise in building AI-augmented automation frameworks (UI/API/DB/contract) that slash regression cycles and drive zero-critical-defect releases in microservices and cloud-native environments. Certified across ISTQB Advanced Test Manager, PMP and BCS Agile Practitioner, I lead cross-functional teams, mentor engineers and embed quality gates into Agile/DevOps pipelines. My work includes ISO 20022 payments transformation, large-scale data migrations, WCAG accessibility, security and regulatory compliance, and using AI tools to enhance test coverage and efficiency.…I am a dynamic Principal Test Engineer and Automation Test Lead with 15+ years delivering end-to-end testing across fintech, payments modernisation, automotive SaaS, government and medical LIMS platforms. I specialise in building AI-augmented automation frameworks (UI/API/DB/contract) that slash regression cycles and drive zero-critical-defect releases in microservices and cloud-native environments. Certified across ISTQB Advanced Test Manager, PMP and BCS Agile Practitioner, I lead cross-functional teams, mentor engineers and embed quality gates into Agile/DevOps pipelines. My work includes ISO 20022 payments transformation, large-scale data migrations, WCAG accessibility, security and regulatory compliance, and using AI tools to enhance test coverage and efficiency.

Dara Mbah

QA Engineer, Full Stack Developer, Back-End Developer, +2

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I am a dynamic Principal Test Engineer and Automation Test Lead with 15+ years delivering end-to-end testing across fintech, payments modernisation, automotive SaaS, government and medical LIMS platforms. I specialise in building AI-augmented automation frameworks (UI/API/DB/contract) that slash regression cycles and drive zero-critical-defect releases in microservices and cloud-native environments. Certified across ISTQB Advanced Test Manager, PMP and BCS Agile Practitioner, I lead cross-functional teams, mentor engineers and embed quality gates into Agile/DevOps pipelines. My work includes ISO 20022 payments transformation, large-scale data migrations, WCAG accessibility, security and regulatory compliance, and using AI tools to enhance test coverage and efficiency.…I am a dynamic Principal Test Engineer and Automation Test Lead with 15+ years delivering end-to-end testing across fintech, payments modernisation, automotive SaaS, government and medical LIMS platforms. I specialise in building AI-augmented automation frameworks (UI/API/DB/contract) that slash regression cycles and drive zero-critical-defect releases in microservices and cloud-native environments. Certified across ISTQB Advanced Test Manager, PMP and BCS Agile Practitioner, I lead cross-functional teams, mentor engineers and embed quality gates into Agile/DevOps pipelines. My work includes ISO 20022 payments transformation, large-scale data migrations, WCAG accessibility, security and regulatory compliance, and using AI tools to enhance test coverage and efficiency.

Available to hire

I am a dynamic Principal Test Engineer and Automation Test Lead with 15+ years delivering end-to-end testing across fintech, payments modernisation, automotive SaaS, government and medical LIMS platforms. I specialise in building AI-augmented automation frameworks (UI/API/DB/contract) that slash regression cycles and drive zero-critical-defect releases in microservices and cloud-native environments.

Certified across ISTQB Advanced Test Manager, PMP and BCS Agile Practitioner, I lead cross-functional teams, mentor engineers and embed quality gates into Agile/DevOps pipelines. My work includes ISO 20022 payments transformation, large-scale data migrations, WCAG accessibility, security and regulatory compliance, and using AI tools to enhance test coverage and efficiency.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Principal Test Engineer / Test Manager (Data Migration / Manual & Automation Test Enhancement) at Cox Automotive Inc

June 1, 2025 - Present

Defined and executed enterprise-level test automation strategy across BAU teams, aligning with DevOps to assure quality in microservices and service-to-service integrations. Designed and implemented automation frameworks (Java/TypeScript) using Cypress, Pact, JMeter and k6 for UI, API, DB, and contract testing. Led a major data platform migration from on-premises SQL estates to a cloud data warehouse on Azure, validating ETL/ELT pipelines and data reconciliations. Authored complex SQL validations, built reusable reconciliation harnesses against Snowflake/BigQuery-style targets, surfacing variance before cut-over. Embedded automated tests into CI/CD (GitHub Actions, Jenkins, Azure DevOps) with quality gates reducing cycle times. Mentored junior engineers, collaborated with PMs and Architects to improve testability, and championed observability (New Relic, Grafana, CloudWatch). Achieved zero critical defects on go-lives and accelerated delivery by ~30%.

Senior Automation Tester – Payments & Data Platform Modernisation at Fiserv

August 1, 2024 - June 1, 2025

Led test automation for secured API token services and inter-service integrations across multiple Prospect clients (EMS, Elavon, eMerchant Pay, LexisNexis, Clover UK, Salesforce, Order Management). Built and maintained a unified automation framework (TypeScript with Playwright for UI, REST Assured/Postman for API, JMeter for performance) with data validation in SQL and security testing. Integrated automation into CI/CD via GitHub Actions and Azure DevOps, enabling parallel execution and automated quality gates; reduced regression cycles from 5 days to <1 day and increased coverage from 45% to 82%. Validated data pipelines, ETL/ELT processes and reconciled >50M records with <0.01% variance. Mentored engineers, conducted root-cause analysis, and collaborated with stakeholders to surface quality risks early. Performed security testing (Burp Suite / OWASP ZAP) where required.

Senior Automation Test Lead/Performance Tester at UL Solutions UK

May 1, 2023 - June 1, 2024

Led a 6-person automation and performance testing team; defined and executed comprehensive test strategies for REST-based services and data migration workstreams. Built automation using TypeScript, Playwright for UI, REST Assured/Postman for API, and JMeter for performance. Automated end-to-end tests integrated into CI/CD pipelines (GitHub Actions, Jenkins, Azure DevOps) delivering a 30% faster release cadence and 82% test coverage. Validated large-scale data migrations (>20M transactional records) with SQL-based validation across Azure Data Factory, Delta Lake, Snowflake and Cosmos DB; achieved <0.02% data variance. Implemented data reconciliation harnesses, created KPI dashboards in Power BI to track defect density, MTTR and pass/fail trends. Led security testing and collaborated with Data Engineers to ensure data correctness.

Senior Automation Test Lead (Data Testing, System Integration, UAT, API, Automation, Performance Testing) at Metro Bank

July 1, 2022 - May 1, 2023

Trained staff on end-to-end SEPA payments processing and led Avaloq core banking system testing. Defined onboarding and production verification testing (PVT) processes; led UI and API automation using Python, Selenium, and Cypress; triaged defects and managed cross-functional defect resolution. Coordinated with cross-border payments teams and business stakeholders; improved non-STP incidents post-Go-Live; maintained stakeholder relationships and delivered executive-level reporting.

Test Consultant / Test Manager at Schuh

August 1, 2021 - July 1, 2022

Managed 4 testers across Dynamics 365, SAP S/4 HANA, Payment gateways and CRM projects; introduced Agile practices (Jira, Zephyr) and led test strategy, planning and execution. Built automation in Python/TypeScript with Selenium, Cypress, SpecFlow; orchestrated cross-browser and mobile testing with BrowserStack; created test documentation and acceptance criteria; mentored team and improved live defect rates.

Test Lead at Boohoo

May 1, 2016 - January 1, 2018

Led testing for Dynamics 365, SAP ECC transformation, payment gateway enhancements and multi-language websites; managed 4 testers; implemented agile with Jira/Zephyr; built automation in Python and TypeScript with Selenium and Katalon; performed manual and automated testing across browsers and mobile; defined test strategies, wrote test scripts.

Senior Test Analyst at Cashplus

August 1, 2014 - April 1, 2016

Manual and automation testing across customer journeys, Avaloq Core Banking System testing; created Java-Selenium automation framework; decreased live bugs; led defect management and review; defined test strategies and documentation.

Test Analyst at Sheila’s Wheels

February 1, 2013 - August 1, 2014

System testing and UAT for insurance quote journey; developed test strategies and scripts; reduced live bugs by 15% and shortened test cycles; maintained traceability.

Customer Service Advisor / Team Lead at Matalan UK

December 1, 2009 - January 1, 2013

Customer support and team leadership; contributed to process improvements and cross-functional collaboration to support IT and business teams.

Test Lead at LumiraDX Caresolutions

September 1, 2018 - December 1, 2019

Test Lead for SAAS medical software and mobile systems; produced test strategies, managed cross-team defect resolution, deployed in AWS CI/CD pipelines, and delivered training and handover notes.

Performance Tester / Developer in Test at Landmark Solutions

January 1, 2020 - August 1, 2021

Led testing on government CSS projects for OFGEM and DCC; API testing with Postman, automation with Cypress/TypeScript, and performance testing with JMeter; database testing with Oracle; participated in SIT/UAT and defect triage; built testing frameworks.