Erim Cerrahoglu Email & Phone Number

Ta' Xbiex, Malta

UI Test Automation: Led the development and migration from Puppeteer to Playwright for UI test automation, resulting in a significant reduction in test execution time and faster test scenario implementation.Automation End-to-End Test Coverage & Pass Rates: Fixed and updated existing Puppeteer test scenarios in line with project changes, improving the pass rate from an unstable 60% to a consistent minimum of 80%. Took on the responsibility of adding test coverage for the features that were not covered earlier as well to ensure quality standards.Manual Testing Efforts: Played a key role in the manual testing efforts of the Betsson products. Did Release Testing, UAT, Sanity Checks, etc. routinely in order to keep the quality standard high. Succeeded in catching more than 90% of the Frontend bugs before they have reached the PROD environment thanks to routine manual testing and proper reporting via JIRA and other various reporting tools.Frontend Development: Played a significant role in fixing caught UI defects and implementing new features in a micro frontend architecture using Angular. Significantly decreased the true negative bug cases and achieved maintaining the 80% pass rate on e2e test results.Agile Methodologies: Successfully applied Agile methodologies, particularly Scrum, in various projects. Participated in sprint planning and retrospectives, resulting with improvement in team velocity and more efficient project delivery.Code Reviews and GitHub Contributions: Conducted regular code reviews and mentored newcomers and junior developers. Actively contributed to the company’s GitHub repositories. Achieved a personal average of 56% commits and 44% code reviews.

Istanbul, Türkiye

Development & API Test Automation: Designed and implemented an API test automation tool using Python and Robot Framework, achieving a 40% increase in execution speed and maintaining a stable 70% minimum pass rate, significantly reducing test flakiness and increasing overall efficiency compared to the legacy system. These improvements were achieved by the implementation of parallel execution of the test on the CI/CD pipeline.Agile Methodologies: Played an active role in Agile ceremonies, including sprint planning, retrospectives, and daily stand-ups. Helped the team transition from a Kanban model to a Scrum framework, improving sprint velocity by 20% and reducing the average bug resolution time by 15%.CI/CD & Containerization: Integrated automated API tests into the CI/CD pipeline using Jenkins, allowing for continuous testing throughout the development process. This reduced build failures and helped identify breaking changes earlier, minimizing deployment delays and production issues by 30%. Streamlined test environments by containerizing automated tests with Docker, ensuring consistency across multiple environments.Cross-Team Collaboration: Worked closely with developers, business analysts, and project managers to define test scenarios and requirements. Collaborated with backend teams to resolve integration issues and ensure seamless communication between services. Helped improve testing coverage by aligning testing goals with business requirements, ensuring a 25% increase in overall test efficiency.

İstanbul, Türkiye