Available to hire
I’m Serniel Joshua Barbosa, a QA professional with 12+ years of experience in manual testing, test automation, and performance testing. I’ve built and maintained test automation frameworks for web, mobile, and desktop applications, and I’ve led cross-functional initiatives to improve QA processes, metrics, peer reviews, and test reporting. I enjoy turning complex testing challenges into scalable solutions and mentoring teammates to raise the overall quality of deliverables.
My experience spans On-Prem and Cloud ERP, monolith applications, and industries such as enterprise HR/People solutions, accounting software, telehealth, benefits exchange, digital marketing, and OTT platforms. I’m passionate about AI-assisted testing, accessibility, security testing, data migrations, and multi-tenant scenarios, and I thrive in collaborative environments where continuous learning and improvement are valued.
Language
English
Fluent
Work Experience
QA Engineer (EMEA) at Outsourced
April 1, 2025 - August 1, 2025Built and maintained Gatling framework; performed functional and performance testing for OTT services; collaborated with cross-functional teams to validate service performance.
Software Tester at Zinc Group
March 1, 2023 - September 1, 2024Built and maintained automation framework for smoke, regression, functional and end-to-end testing; conducted exploratory, regression, smoke, functional and end-to-end testing.
Lead Associate - Software Quality Assurance and Testing (NALA) QA Performance Test Engineer at Willis Towers Watson
January 1, 2023 - March 1, 2023Performance analysis and reporting; performance test maintenance; design of performance tests; contributed to the performance testing framework.
Associate - Software Quality Assurance and Testing (EMEA) QA Performance Test Engineer at Willis Towers Watson
February 1, 2022 - December 1, 2022Performance analysis and test design; maintained performance framework; utilized Azure Monitor, JMeter, K6, and Azure DevOps.
Associate - Software Quality Assurance and Testing (NALA) Quality Engineer at Willis Towers Watson
March 1, 2022 - February 1, 2023Test planning, test case development, execution and reporting; REST API testing using Swagger and Postman; backend SQL validation; SpecFlow test runs.
Software Development Engineer in Test (SDET) at Willis Towers Watson
September 1, 2021 - March 1, 2022Execute and monitor automation; triage automation failures; maintain automated test suites and reports.
Scrum Master / QA Engineer at Willis Towers Watson
July 1, 2021 - March 1, 2022Plan and implement process improvements for two teams; administer agile scrum processes; facilitate cross-team and automation checkpoints; coach team members; resolve impediments.
Quality Engineer at Willis Towers Watson
December 1, 2020 - March 1, 2022Test planning, case development, execution and reporting; define QA strategy for new features at UAT; triage Live Site incidents in production; mentor colleagues.
Test Specialist Automation at IBM Solutions Delivery Inc.
October 1, 2020 - December 1, 2020Built a BDD SpecFlow automation framework translating spreadsheet data to Gherkin for integration tests.
Application Developer Front End at IBM Solutions Delivery Inc.
April 1, 2020 - September 1, 2020Developed and maintained frontend enhancements using Angular; implemented unit tests with Karma/Jasmine; resolved defects; tested backend APIs with Postman.
Test Specialist Automation at IBM Solutions Delivery Inc.
October 1, 2019 - April 1, 2020Created and maintained end-to-end automation tests; understood testing requirements; mentored junior automation testers; communicated with onshore clients.
Quality Assurance Analyst (APAC) at Infor PSSC Inc.
October 1, 2018 - September 1, 2019STLC, integration, system and acceptance testing; data migration; lead teams in manual testing; automation maintenance; single & multi-tenant testing; SSO; OWASP ZAP.
Associate Quality Assurance Analyst (APAC) at Infor PSSC Inc.
September 1, 2014 - October 1, 2018Lead teams to plan and execute manual testing; automation maintenance; data exchange; multi-tenant testing; SSO; OWASP ZAP.
Quality Assurance Consultant (EMEA) at Achieve Without Borders - Intellicare
April 1, 2022 - January 1, 2023Automation creation and maintenance in Cypress; retesting of bugs; weekly regression and smoke testing; manual integration testing.
Full-stack Developer at Acts Integrated Ministries Int’l Inc.
January 1, 2012 - August 1, 2013Developed and designed a web application; maintained database; using CodeIgniter PHP, HTML5, CSS3; resolved defects and performed testing.
Education
Bachelor of Science in Information Technology, Computer Programming at Technological Institute of the Philippines – Manila City
May 1, 2009 - March 1, 2014Software Quality Assurance Analyst Training at NovaED IT Training Services
September 1, 2013 - January 1, 2014Qualifications
Professional Scrum Master I (PSM I)
June 1, 2015 - June 1, 2017Certified Tester Performance Testing (CT-PT)
January 11, 2030 - December 16, 2025Certified Tester Advance Level Test Analyst (CTAL-TA)
January 11, 2030 - December 16, 2025Certified Tester Foundation Level (CTFL)
January 11, 2030 - December 16, 2025IBM Media & Entertainment Industry Foundations
January 11, 2030 - December 16, 2025Industry Experience
Software & Internet, Professional Services, Media & Entertainment, Healthcare
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