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Gabriel Tumambing

Gabriel Tumambing

QA Engineer | Manual & Automation Testing | Cross-functional QA | Software Development

Talent
ManilaMember since May 29, 2026
Manual TestingAutomated TestingLLM EvaluationRegression TestingApp TestingPerformance ImprovementReactNode.jsPythonComputer ProgrammingProject Management
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Manual TestingAutomated TestingLLM EvaluationRegression TestingApp Testing

About

QA Engineer with hands-on experience testing AI-powered products across 5 product lines at a tech startup. Skilled in LLM evaluation, functional, regression, E2E, and security testing. Experienced in cross-functional collaboration with FE, BE, DC/ML, and Product teams, with a track record of delivering QA reports to C-level stakeholders and driving product releases from testing through sign-off.

Magna Cum

Laude graduate in BS Information Technology from PUP Sta. Mesa.

Experience

Media Meter Inc. — QA Engineer (Oct 2025 – May 2026)

Testing AI-powered products across 5 product lines — Scoup, Salina CRX, Dividr, Downlodr, and Metawhale.

Responsibilities include LLM evaluation, E2E, functional, regression, security, and performance testing. Reported 270 bugs, maintained 300+ test cases with 100% PRD coverage, and presented product readiness reports to C-level stakeholders.

Holocron Tracker Trading — Frontend Development Intern (Mar – Jun 2025)

Led frontend team for an HRIS product. Handled authentication module, onboarding pages, and API integration.

Education

Polytechnic University of the Philippines

Bachelor of Science in Information Technology | GPA: 1.35 | Magna Cum Laude | Sept 2025

Skills

QA EngineerManual & Automation TestingCross-functional QASoftware Development

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