Test Automation Engineer 80-100%

TWINT; Zürich; Hybrid; CHF 110,000 - 150,000; Full time

Job summary

TWINT is seeking a Test Automation Engineer in Zurich to design, implement, and maintain automated tests for APIs, web, and mobile apps. The role focuses on building scalable frameworks, managing test data, and integrating automation into CI/CD pipelines with modern DevOps practices.

You will also develop AI-driven workflows and custom LLM components to enhance product capabilities, with Home Office options and a hybrid work model in Switzerland.

Qualifications

• 5+ years in software engineering or test automation.
• Experience building test frameworks with data management and parallel tests.
• Proficient in Java, Python, and Bash.
• Cloud experience (Azure) with CI/CD (GitHub Actions) and Docker/Kubernetes.
• Experience with LLM-based automation; prompt/context engineering.

Responsibilities

• Design, implement, and maintain automated tests for APIs, web, and mobile apps.
• Build and evolve scalable test frameworks with data mgmt and parallel execution.
• Manage test data and environments to ensure reproducible results.
• Develop AI-driven workflows to automate manual processes.
• Integrate automation into CI/CD pipelines for end-to-end optimization.
• Create custom LLM agents and AI components tailored to business needs.

Skills

Java

Python

Scripting

SDLC & Agile

Communication

Education

Bachelor’s or Master’s degree in CS/Software Engineering

Tools

Azure

GitHub Actions

Docker

Kubernetes

Job description

At TWINT, we believe that innovation should simplify our lives and coexistence. It should help us focus on the things that truly matter: the experiences that move us, the people close to us, and everything that brings us together. That's why we ensure that our daily lives continually become easier – because payment and everything around it gets seamlessly integrated into our lives. So that each one of us can make more out of the moment. For ourselves, for others, and for all of Switzerland.

Shape the future of digital payment solutions together with us and become part of the TWINT success story! Mobile payment is our passion, and it doesn't stop there. Do you want to create an impact with TWINT and to work in dynamic and innovative teams in Zurich? Then you are exactly right with us as Test Automation Engineer 80-100% in Zurich with option of Home Office.

As an Test Automation Engineer you will design, implement, and maintain test and process automation solutions that improve quality, accelerate delivery, and enable innovation across TWINT. The role requires hands‑on expertise in test automation, strong software engineering skills, and practical experience with large language models (LLMs) to drive AI‑enabled process improvements and new product capabilities.

Your impact at TWINT:

• Design and implement automated tests for APIs, web, and mobile applications, including early integration into the development lifecycle (shift-left testing).

• Build, maintain, and enhance scalable test frameworks with test data management, reporting, and parallel execution capabilities.

• Ensure reliable and repeatable test execution through effective management of test data and environments.

• Develop and maintain AI-driven and business workflows to automate manual processes and increase operational efficiency.

• Integrate automation solutions into existing systems and CI/CD pipelines for end-to-end process optimization.

• Design and build custom LLM agents and AI components tailored to business needs, including prompt and context engineering.

• Identify, prototype, and scale generative AI and LLM use cases to drive innovation across products and operations.

Your Profile:

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or equivalent and at least 5 years of experience in software engineering, test automation, or a related field

• Proven track record in building and maintaining test frameworks (including test data management, reporting, and parallelization)

• Strong understanding of object‑oriented principles with hands‑on experience in Java, Python, and scripting (e.g., Bash)

• Practical experience on cloud platforms (e.g. Azure) with pipeline‑as‑code (e.g., GitHub Actions), automated build/test workflows, and modern DevOps practices (including Docker/Kubernetes)

• Experience with process automation tools and building LLM‑based solutions (including prompt/context engineering; Windmill is a plus)

• Excellent verbal and written communication skills; able to explain technical concepts clearly to diverse stakeholders

• Proactive, curious, and self‑driven professional with a strong understanding of modern SDLC and agile practices; works effectively with minimal supervision and confidently challenges the status quo while taking calculated risks to drive continuous improvement

• Fluent in English; German is a plus

What awaits you:

• Career and development: Shape your professional future through exciting tasks and challenges, as well as comprehensive further education opportunities in an innovative technology company.

• Work-life balance: Enjoy 6 weeks of vacation time and benefit from flexible working hours with the option to work from home.

• Balancing work and family: Benefit from additional perks such as increased family allowances and more parental leave.

• Team spirit and positive work atmosphere: Experience a collegial and healthy work culture, accompanied by regular events that strengthen collaboration.

• Fair and competitive compensation: At TWINT, we focus on a fair wage culture & fair pay. We also offer attractive additional benefits.

• Central locations: Our offices are located in the heart of Zurich and Bern and are easily accessible by public transport