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Who we are

You enjoy creating and innovating. You never stop striving for better. You take responsibility and you get results. You love being part of a team. Above all, you want your work to matter: Welcome to our world! At Sonova we create sense by bringing sound to life. Our innovative hearing care solutions help millions of people enjoy life’s unforgettable moments.

We offer exceptional career opportunities through market-leading brands from consumer to medical, products and services that keep pushing hearing care forward, and a culture where you can quickly belong and perform at your best.

If you want the freedom to explore, opportunities to grow, and make positive change on people lives through your work, this is the place for you.

Join Sonova. Create sense.

Staefa, Switzerland

Software Engineer C# .NET

In our R&D group, we develop hearing solutions and services for hearing impaired people and hearing care professionals in the form of hearing instruments, accessories, web services, mobile applications and PC software.

We are looking for a skilled and experienced software developer for a C# .NET application targeted at modeling of personalized custom-made ear pieces. Help us master the challenge of creating and developing tailor-made software application for geometric modeling of ear molds and in-the-ear hearing aid shells, manufactured via Additive Manufacturing (3D printing). Be part of our developer-driven culture which fosters your creativity and programming skills in all aspects of the software development life-cycle.


Your tasks

  • Analysis, architecture and design of Windows desktop application for geometric modeling
  • Implementation in C# .NET
  • Testing and documentation of the application
  • Monitor and further develop a modern software development process (based on Git/GitHub, TeamCity, NuGet, Jira/Azure DevOps)
  • Take on functional ownership and keep close collaboration with other software engineers in an agile setup
  • Evolve agile development
  • Close collaboration with external partners and within Sonova

Your profile

  • University degree in computer science, software engineering or equivalent
  • Strong C# coding skills and 3+ years of experience with C# .NET Windows application development
  • Proven knowledge in software architecture and software development principles like SOLID
  • C++ knowledge is a plus
  • Knowledge of WPF is a plus
  • Know-how of 3D computer graphics (OpenGL, Direct3D, 3D rendering), geometric modeling, ideally in interactive geometry manipulation is a plus
  • Solution oriented positive thinker and team player 
  • Fluent in English; German is a plus

Our offer

We can offer you a new challenge, with interesting tasks and much more – including an open corporate culture, flat hierarchies, support for further training and development, opportunities to take on responsibility, an excellent range of foods, sports and cultural facilities, attractive employment conditions, and flexible working time models in various roles. Employment level 80-100%.


Gianni S. Raffi, Senior Talent Acquisition Manager, is looking forward to receiving your complete application (cover letter, CV, references and certificates) via our online job application platform.


For this vacancy only direct applications will be considered. 


Sonova AG
Laubisrütistrasse 28
CH-8712 Stäfa
+41 58 928 01 01

Sonova is an equal opportunity employer.

We team up. We grow talent. We collaborate with people of diverse backgrounds to win with the best team in the market place. We guarantee every person equal treatment in regard to employment and opportunity for employment, regardless of a candidate’s ethnic or national origin, religion, sexual orientation or marital status, gender, genetic identity, age, disability or any other legally protected status.