Uzi Cohen

Full-cycle QA Engineer with 5 years of experience in mobile and SDK testing. Combines strong manual and exploratory testing skills with deep expertise in building automation frameworks from scratch using Java, Appium, Selenium, and TestNG. Proven results reducing test flakiness by 80%, delivering 300+ automated tests, and optimizing GitLab CI/CD pipelines. Experienced in API testing (REST Assured, Postman), backend data validation, security testing, and cross-platform iOS/Android work in adtech.

QA Automation Engineer at Digital Turbine (2024-05 – 2026-06)

Joined via Qualitest; converted to direct hire in 2025

• Performed hands-on manual and exploratory testing of mobile SDKs and integrations, then engineered a custom visual regression tool in Java that reduced test flakiness by 80%.
• Automated SDK test coverage for iOS and Android, including event tracking and third-party integrations, creating 300+ tests that saved approximately 10 hours per week.
• Developed and executed automated test suites for a major integration migration project, identifying 5+ critical bugs through rigorous edge-case and exploratory validation.
• Optimized GitLab CI pipelines by improving test isolation and retry logic, cutting CI failure rates by 20% and accelerating deployment speed.
• Converted high-impact manual findings (data failures and duplication issues) into automated regression tests, resolving 2–4 critical bugs weekly.

QA Automation Engineer at Mobile Research Labs (2021-09 – 2024-05)

• Served as the team's primary QA engineer — performed extensive manual and exploratory testing while building the complete iOS, Android, and web automation framework from scratch (Java, Appium, Selenium, TestNG).
• Validated backend-to-frontend data integrity by querying AWS DynamoDB tables and cross-checking values against the live web UI.
• Designed, wrote, and executed over 300 test plans across mobile and web (50% later automated), combining thorough manual coverage with automation, tracked in Jira and Azure DevOps.
• Led an OWASP Top 10 security testing initiative that surfaced 20+ API and web vulnerabilities (IDOR, authentication bypass, SQL injection), all fixed by the development team.

Full-Stack Web Development – Developers Institute (2022)

QA Engineering Certification – Atid Automation (2021)

QA Automation: Selenium & Appium – Atid Automation (2021)