Senior QA Engineer needed with 5+ years of experience to define testing strategies, create and optimize testing frameworks, and audit/improve QA processes. Collaborate with DevOps, architects, and developers to ensure high-quality products. Focus on rapidly developing systems for remote video lottery terminal configuration, gaming club management, and financial reporting. Automated testing using Playwright in TypeScript and C# .NET Core is crucial. The system involves distributed architecture, a complex backend, web, and mobile applications. Responsibilities include implementing new functionalities, upgrading existing parts (microservices migration, containerization, communication method changes, UI improvements), implementing automated UI, API, and E2E tests using C# and Playwright, developing frameworks and tools, testing backend and API functionality, integrating tests with CI/CD, analyzing test coverage, and mentoring colleagues.