Test Automation Engineer (80-100%) - Zurich

About the role

TWINT, a Swiss payment company focused on mobile payments, is looking for a Test Automation Engineer (80-100%) in Zurich with the option of home office. You will design, implement and maintain test and process automation solutions that improve quality, speed up delivery and enable innovation, with hands-on expertise in test automation, strong software engineering skills and practical experience with large language models (LLMs).

Key responsibilities

• Design and implement automated tests for APIs, web and mobile applications, including early integration into development (shift-left testing)
• Build, maintain and enhance scalable test frameworks with test data management, reporting and parallel execution
• Manage test data and environments so that test execution is reliable and repeatable
• Develop and maintain AI-driven and business workflows to automate manual processes
• Integrate automation into existing systems and CI/CD pipelines
• Design custom LLM agents and AI components, including prompt and context engineering
• Identify, prototype and scale generative AI and LLM use cases

Required profile

• Bachelor's or Master's degree in Computer Science, Software Engineering or equivalent, with at least 5 years of experience in software engineering, test automation or a related field
• Proven track record building and maintaining test frameworks, including test data management, reporting and parallelization
• Strong understanding of object-oriented principles
• Experience on cloud platforms (e.g. Azure) with pipeline-as-code (e.g. GitHub Actions), automated build/test workflows and modern DevOps practices (Docker/Kubernetes)
• Experience with process automation tools and LLM-based solutions (Windmill is a plus)
• Fluent English; German is a plus

Required skills

• Java, Python and scripting (e.g. Bash)
• CI/CD pipelines and DevOps practices
• Process automation tools and LLM-based solutions

What we offer

• Career and development opportunities with further education
• 6 weeks of vacation and flexible working hours with home office option
• Additional family allowances and more parental leave
• Regular team events and a collegial work culture
• Fair and competitive pay and benefits

Applications are accepted only directly.