Available to hire
I’m Yessi Relita Butar Butar, a Senior QA Engineer with over 7 years of experience in software quality assurance, product development, and team leadership in fintech and technology. I design and implement comprehensive testing strategies for web, mobile, and API platforms to improve product quality and release efficiency. I enjoy building scalable QA processes, leading cross-functional teams, and aligning testing with product roadmaps and business goals.
In addition to hands-on testing, I bridge technical and business teams to deliver customer-centric products, mentor team members, and drive data-informed decisions that support robust, reliable releases.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Language
Indonesian
Fluent
English
Advanced
Work Experience
Senior QA Engineer at Qoala Plus (Qoala)
January 1, 2023 - PresentActed as QA Team Lead, directing testing priorities and aligning deliverables with the product roadmap to ensure timely releases. Built and maintained robust UI and API automation frameworks using Katalon Studio, improving release cycle efficiency. Authored comprehensive test cases and converted numerous manual scripts into scalable automation scripts. Led mobile app automation for regression cycles, executing 40+ test suites and significantly reducing production bugs. Mentored QA team members, enhancing problem-solving and data-informed decision-making. Collaborated with product managers to refine user stories and ensure acceptance criteria were met.
Senior QA Engineer at Ajaib Coin Kripto (PT . Ajaib Sekuritas Asia)
May 1, 2022 - December 1, 2022Developed and executed detailed manual and automated test cases for web, mobile, and API services using Postman and Katalon Studio. Partnered with product owners to refine acceptance criteria, ensuring features aligned with strategic business goals. Implemented automated regression testing that reduced production defects for critical trading and user account features. Delivered over 20 automated test suites, significantly enhancing development cycles and improving release confidence.
Senior QA Engineer at Campaign Dashboard and Payment Service (PT Archor Teknologi (Qoala))
May 1, 2020 - May 1, 2022Led daily cross-functional stand-up meetings to align priorities and resolve blockers between QA, product, and engineering teams. Collaborated with multiple business units to translate complex requirements into actionable specifications for key integrations. Executed rigorous manual testing for web, mobile, and API platforms to ensure compliance with functional and business requirements. Developed and maintained UI and API automation tests with Katalon Studio, successfully streamlining release cycles. Established comprehensive regression test suites for mobile automation, executing over 40 test runs that resulted in measurable time savings.
QA Engineer at Codashop.com (PT Coda Payments)
October 1, 2018 - May 1, 2020Partnered with developers and product teams to validate new features against business needs through a combination of manual and automation testing. Designed and executed more than 20 automated test suites to maintain high-quality standards across frequent product releases. Contributed to a significant reduction in production-critical issues by implementing continuous testing practices within the CI/CD pipeline.
QA Automation at Aplikasi Bisnis Jenius (PT Bank Tabungan Negara)
October 1, 2017 - October 1, 2018Built the UI automation testing framework for the Jenius mobile banking application using Katalon Studio, enabling faster release cycles. Successfully translated dozens of manual test cases into efficient automation scripts, which reduced repetitive QA workloads. Led knowledge-sharing sessions to upskill team members in automation best practices, improving overall team competency.
Java Developer Intern at Computer Based Test application (PT Pradipta Jatis Indonesia)
June 1, 2017 - August 1, 2017Developed a computer-based testing application using the Spring MVC framework, personally building 75% of its RESTful API endpoints. Contributed to a live system that was successfully utilized by 35% of its target users during the initial rollout phase.
Senior QA Engineer at Qoala Plus (Qoala) – Jakarta
January 1, 2023 - PresentActed as QA Team Lead, directing testing priorities and aligning deliverables with the product roadmap to ensure timely releases. Built and maintained robust UI and API automation frameworks using Katalon Studio, improving release cycle efficiency. Authored comprehensive test cases and converted manual scripts into scalable automation scripts. Led mobile app automation for regression cycles, executing over 40 test suites and reducing production bugs. Mentored QA team members to enhance problem-solving skills and foster data-informed decision-making. Collaborated with product managers to refine user stories and ensure features met acceptance criteria.
Senior QA Engineer at Ajaib Coin Kripto (PT . Ajaib Sekuritas Asia) – Jakarta
May 1, 2022 - December 1, 2022Developed and executed detailed manual and automated test cases for web, mobile, and API services using Postman and Katalon Studio. Partnered with product owners to refine acceptance criteria, ensuring features aligned with strategic business goals. Implemented automated regression testing that reduced production defects for critical trading and user account features. Delivered over 20 automated test suites, significantly enhancing development cycles and improving release confidence.
Senior QA Engineer at Campaign Dashboard and Payment Service (PT Archor Teknologi (Qoala)) – Jakarta
May 1, 2020 - May 1, 2022Led daily cross-functional stand-up meetings to align QA, product, and engineering priorities and resolve blockers. Collaborated with multiple business units to translate complex requirements into actionable specifications for key integrations. Executed rigorous manual testing for web, mobile, and API platforms to ensure compliance with both functional and business requirements. Developed and maintained UI and API automation tests with Katalon Studio, streamlining release cycles. Established comprehensive regression test suites for mobile automation, executing over 40 test runs that yielded measurable time savings.
QA Engineer at Codashop.com (PT Coda Payments) – Jakarta
October 1, 2018 - May 1, 2020Partnered with developers and product teams to validate new features against business needs through manual and automation testing. Designed and executed more than 20 automated test suites to maintain high-quality standards across frequent product releases. Contributed to a significant reduction in production-critical issues by implementing continuous testing practices within the CI/CD pipeline.
QA Automation at Aplikasi Bisnis Jenius (PT Bank Tabungan Negara) – Jakarta
October 1, 2017 - October 1, 2018Built the UI automation testing framework for the Jenius mobile banking application using Katalon Studio, enabling faster release cycles. Translated dozens of manual test cases into efficient automation scripts, reducing repetitive QA workloads. Led knowledge-sharing sessions to upskill team members in automation best practices.
Java Developer Intern at Computer Based Test application (PT Pradipta Jatis Indonesia) – Jakarta
June 1, 2017 - August 1, 2017Developed a computer-based testing application using the Spring MVC framework, personally building 75% of its RESTful API endpoints. Contributed to a live system that was successfully utilized by 35% of its target users during the initial rollout phase.
Education
Bachelor's Degree in Information Technology at Bakrie University
January 11, 2030 - August 1, 2020Associate's Degree in Information Technology at DEL Institute of Technology
January 11, 2030 - September 1, 2017Bachelor's Degree in Information Technology at Bakrie University, Jakarta
January 11, 2030 - August 1, 2020Associate's Degree in Information Technology at DEL Institute of Technology, Sumatera Utara
January 11, 2030 - September 1, 2017Qualifications
Industry Experience
Software & Internet, Financial Services, Professional Services, Computers & Electronics
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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