Senior Quality Assurance Engineer
PT Esensi Solusi Buana (ESB)
- Led end-to-end test planning including scope definition, risk assessment, timeline estimation, and release validation
- Reduced production defects by ~30% through improved regression coverage and structured test case review
- Developed and maintained an end-to-end automation framework using Playwright (TypeScript) with a Page Object Model architecture and Git version control, reducing regression testing time by ~40%
- Conducted API and performance testing using Postman and JMeter to ensure system scalability and reliability
- Performed backend data validation using MySQL queries through MySQL Workbench to verify transaction integrity and data consistency
- Mentored 2 junior QA engineers in test design, defect reporting standards, and automation best practices
- Acted as quality gatekeeper during corporate release cycles, ensuring stable deployment to production