We're hiring on behalf of a Haystack partner!The Role• Design and own end-to-end test strategies across all levels, including unit, integration, system, UI, stress, and performance tests for medical software products.• Build and enhance test harnesses and CI pipelines for early regression detection, ensuring stability and scalability for C++ desktop, .NET, and modern web stacks.• Plan, implement, and analyze load and performance tests, identifying bottlenecks and stability risks to drive measurable quality improvements with development teams.• Collaborate closely with development, architecture, and product management, acting as the team's quality advocate and embedding test-driven "Shift-Left" engineering practices.• Utilize AI agents and tools to generate, maintain, and triage tests, building reusable automation skills and workflows for the QA community.What You'll Need• Several years of senior-level test automation experience with a deep understanding of multi-layered test frameworks and proven practice in load and performance testing, ideally in regulated or safety-critical environments.• Excellent academic background in Computer Science, Mathematics, Physics, Electrical Engineering, or a comparable technical field with strong grades.• Strong programming skills in at least one language such as C#, Java, Python, or TypeScript; experience with modern test tools, version control, and CI/CD is a plus.• Demonstrated effective use of AI in QA workflows, ideally with experience in agentic coding tools and AI pipelines.• Fluent English and German language skills, strong problem-solving abilities, innovative mindset, proactivity, entrepreneurial spirit, and high quality standards.What's On Offer• Competitive salary• Flexible work arrangements with hybrid options.• Opportunities for professional development through internal and external training programs.• Access to wellness facilities including a fitness studio and healthy dining options.Apply via Haystack today!

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Software Test Engineer