Senior Test Automation Engineer

Bandpey; München; Hybrid; EUR 92,000 - 166,000; Full time

Job summary

Bandpey is seeking an experienced test automation freelancer in Munich to lead end-to-end automated testing for medical software across C++, .NET and web stacks. You will design strategies, build scalable CI pipelines, and drive quality through stress and performance testing at scale.

You will collaborate with developers, architects and product management, promoting shift-left practices and reliable feedback to teams. Fluency in English is required; German is a plus.

Qualifications

• Senior test automation experience across multi-layered frameworks
• Strong programming skills in at least one of C#, Java, Python or TypeScript
• Hands-on experience with CI/CD pipelines and modern test tooling (Ranorex, Playwright, Cypress, GitLab CI)
• Quality-first mindset and problem-solving orientation

Responsibilities

• Design end-to-end automated test strategies across unit, integration, system, UI, stress and performance layers
• Build and maintain test harnesses and CI pipelines that scale and provide fast feedback
• Design and run stress and performance tests to identify bottlenecks and stability risks
• Collaborate with developers, architects and product management to promote shift-left practices
• Leverage Claude Code or similar AI tools to generate and triage tests and expand QA workflows

Skills

Test automation

C#

Java

Python

Tools

Ranorex

Playwright

Cypress

GitLab CI

Job description

About the engagement

Bandpey GmbH is a data and AI software company in Munich, Germany. For a client in Germany we are looking for an experienced test automation freelancer to work on medical software products. The estate spans C++ desktop applications, .NET and modern web. The work covers automated test strategy across multiple layers, CI pipelines, and stress and performance testing, with a priority on reliable feedback to the development teams at scale.

What you will do

• Design and own end-to-end automated test strategies across the test layers: unit, integration, system, UI, stress and performance.
• Build and maintain test harnesses and CI pipelines that catch regressions early, run reliably at scale and give fast feedback across the C++ desktop, .NET and web estates.
• Design and run stress and performance tests, identify bottlenecks and stability risks, and work with engineering on measurable quality improvements.
• Work with developers, architects and product management, and support test-driven, shift-left engineering practices.
• Use AI coding agents such as Claude Code to generate, maintain and triage tests, and build automation skills and workflows the wider QA team can reuse.

What you bring

• Several years of senior test automation experience, with a solid grasp of multi-layered test frameworks, stress testing and performance testing.
• Strong programming skills in at least one of C#, Java, Python or TypeScript.
• Hands-on experience with CI/CD pipelines, version control and modern test tooling, for example Ranorex, Playwright, Cypress and GitLab CI.
• A strong problem-solving orientation and a quality-first working style.

Nice to have

• C# experience and penetration-testing skills.
• ISTQB or an equivalent certification.
• Hands-on experience with Claude Code or similar agentic tools, including building agents, skills and workflows; familiarity with AI pipelines, harnesses and context engineering.
• A background in regulated or healthcare software.

Engagement details

• Six months, full-time, starting as soon as possible.
• Remote from within the EU.
• Fluent English required; German is an advantage.