Ruslan Ribac

Delivering Quality in a multinational iGaming project, Caesars sports wagering platform for digital and retail systems with complex business logic Leaded and implemented the test automation strategy, growing the overall API automated tests coverage by 700+ tests Added API test automation coverage (90%) for 6 big features into production with no severe bugs (Scala, Rest Assured, Scalatest, Wiremock, custom Matchers, Circe, WebSocket, kafka) Performed 3 migrations and refactored the automated tests for new service versions, keeping back compatibility and re-configured the 4 CI jobs for this purpose Mentored 3 QA engineers and facilitated their smooth and fast project integration, performed 5 interviews, created onboarding guides (Confluence) Noticed and reduced the regression end-to-end tests CI pipelines flakiness, configured new and existing CI jobs with multi-thread parallel test execution (GitLab)

Microservices QA automation of subscription based video on-demand, high-load streaming service

Implemented and maintained 1000+ API (Kotlin, Rest Assured, REST test, JUnit, maven, OAuth 2) and UI (Kotlin, Selenium) low flakiness (under 10%) automated tests (in TestRail) for user account and profile management microservices

Proposed and implemented an internal library for sharing automated service endpoints and methods between 5 streams

Implemented a UI test automation framework, 100+ tests using Kotlin, Selenium, JUnit, SeleKt and integrated it in Jenkins CI/CD

Implemented a POC for using Cucumber in existing automated API tests Performed load, stress testing, identifying system bottlenecks and performance limits, ensuring services perform according defined KPIs and metrics using JMeter Planned and executed release testing, 2x a week cadence with no critical bugs in production Maintained daily the automated regression pack consisting of 1500+ API and UI tests Mentored 2 automation QA Engineers enabling their smooth integration

Delivered high-performance retail software solutions for H&M by rigorous QA protocols to ensure system stability and seamless user experiences within agile cross-functional team Drove the adoption of test automation initiatives that cut production delivery times by 25% through improved release velocity (Java, JUnit, Mockito) Cross-functional collaboration between 3 streams, developers, QA, BA

Successfully delivered 15+ releases to production with no critical bugs Test analysis and design, test execution, exploratory, regression, confirmation testing (Postman, Jenkins, Rundeck, Linux, MySQL, WinSCP, Putty, UltraVNC, Perforce, XML, VirtualBox)

Investigated, reported bugs, raised incidents, clarifications