A Senior QA Engineer is needed with at least 5 years of experience to define testing strategies, create and optimize testing frameworks, and improve QA processes. Collaboration with DevOps, architects, and developers is crucial. Responsibilities include developing automated tests using C# and Playwright (TypeScript) for UI, API, and E2E testing; implementing BDD, SpecFlow, and performance/load/security tests; and working with CI/CD pipelines. The company develops systems for remote video lottery terminal configuration, gaming club management, and financial reporting, utilizing a distributed architecture with web and mobile applications. Continuous system upgrades and migration towards microservices are ongoing.