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Senior C# /.NET SW Engineer focused on Test Automation

Location Nänikon, Canton of Zurich, Switzerland Date posted May 27, 2026 Job ID 22118
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Our Opening and Your Responsibilities
In our Software Development Center, we develop cloud-ready solutions. Our solutions are globally available and support multiple languages. To further expand our leadership role, we invest in our software platforms for new products. That is why we are looking for a motivated Senior C# /.NET SW Engineer focused on Test Automation 100% (all genders).

Here you are part of a large project with professional, systematic processes and still have enough freedom for your creativity. This role is based in our global operational Headquarter in the proximity of Zürich (Nänikon-Greifensee).

In this role, you will: 
  • Expand our existing test automation framework and test coverage.  
  • Work closely with other SW engineers to analyze architecture and implement detailed test coverage on service, integration system and UI level.
  • Collaborate with requirement engineers and development team to understand features behavior and then define and contribute suitable automated test solutions. 
  • Conduct design and code reviews of automated tests with team members.
  • Work together with DevOps team to set up and maintain test automation in CI/CD pipeline.
  • Participate in test pipeline maintenance rotation and ensure pipeline failures are prioritized properly.
  • Analyze our software systems and collaborate with others to improve the overall design, testability, and quality.
  • Advocate for best practices in testing, coding practices, testability, and quality. Promote and guide by example in clean code and the concept of the test pyramid.
  • Ensure that test outcomes are easily accessible, transparent, timely and generated automatically.
  • Work on test execution optimizations, fast feedback loops and test parallelization in distributed environments.
What You Need to Succeed
Your profile:
  • Degree in Computer Science (FH / BSc, MSc) or related technical/scientific discipline.
  • Some years of relevant professional experience in software engineering and/or test automation.
  • Professional programming skills in C#/.Net, or Java.
  • Experiences in building test automation frameworks with focus on white box testing.
  • Familiarity with best practices in UI test automation and tools like Selenium or Cypress.
  • Experiences with continuous integration systems and agile methodologies (preferably in Azure DevOps).
  • Familiarity with advanced concepts of computer architecture, microservices (load balancers, caching, web servers, application servers, networking), data structures and standard programming practices would be a plus.
  • Working knowledge of Docker, Kubernetes would be a plus. 
  • Fluent in English (oral and written) - German is a plus.
Our Offer to You
We offer:
  • Flexible working hours (depending on the role), a hybrid work model, and a wide portfolio of training opportunities
  • A 40-hour work week with at least 25 vacation days per year, plus 4 to 7 additional days off between bank holidays
  • Free parking and direct access to public transport
  • Healthy lunches cooked onsite at our own METTLER TOLEDO restaurant, with special prices for employees 
  • A range of additional attractive benefits, including employee discounts at select area businesses
You can expect challenging, interesting, and varied tasks in an innovative and international environment, with the opportunity to network globally and achieve your career goals.

Have we raised your interest? Then we look forward to receiving your complete application at our Job portal.

Please note that we do not accept any application documents via e-mail, only applications submitted on our job platform due to our data protection guidelines. Furthermore, we do currently not accept applications from recruitment agencies for this role.

If you have any question, please do not hesitate to contact our Talent Acquisition Team ta-ch@mt.com.
About Mettler Toledo
METTLER TOLEDO is a global leader in precision instruments and services. We are renowned for innovation and quality across laboratory, process analytics, industrial, product inspection, and retailing applications. Our sales and service network is one of the most extensive in the industry. Our products are sold in more than 140 countries, and we have a direct presence in approximately 40 countries. For more information, please visit www.mt.com.
Equal Opportunity Employment
We are an equal opportunity employer and value diversity at our company. We give consideration for employment without regard to race, color, religion, sex, age, national origin, disability, sexual orientation, gender identity, genetic information, or any other protected classification. You can find more details in our Equal Employment Opportunity Policy.
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We are an equal opportunity employer and value diversity at our company. We give consideration for employment without regard to race, color, religion, sex, age, national origin, disability, sexual orientation, gender identity, genetic information, protected veteran status, or any other protected classification. Learn your EEO rights as an applicant under the law.

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