Senior Software Engineer (f/m/d)

- Apply strong C# software engineering skills with quality as a first-class outcome—contributing to design, implementation, refactoring, and code reviews, and validating behavior with effective unit and integration tests. - Treat tests as real software: build and maintain production-grade test infrastructure (frameworks, utilities, libraries) using SOLID principles and clean architecture, with meaningful coverage and long-term maintainability. - Collaborate closely with peers during implementation—participating in design/architecture discussions, improving testability and robustness, and driving pragmatic changes in product code and interfaces where needed. - Leverage and evolve the automation framework by owning its architecture, extensibility, and performance, and by strengthening CI/CD quality gates (fast feedback, reliable signals, flaky-test reduction) using simulations, stubs, and mocks where appropriate. - Bring a strong quality perspective to code and test reviews, identifying design risks and edge cases across correctness, reliability, maintainability, and observability, and raising the overall quality bar through clear, practical feedback. - Engage deeply in technical problem solving while acting as a quality mentor, driving root cause analysis and defect prevention, and promoting engineering best practices such as TDD/BDD, effective test design, and continuous improvement of tooling and processes.