Job Description

Who we are


At Sonova, we envision a world where everyone can enjoy the delight of hearing. This vision inspires us and fuels our commitment to developing innovative solutions that improve hearing health and human connection - from personal audio devices and wireless communication systems to hearing aids and cochlear implants. We're dedicated to providing outstanding customer experiences through our global audiological care services, ensuring that everyone has the opportunity to engage fully with the world around them.


Guided by a culture of continuous improvement that fosters resilience and self-motivation, our team is united by a shared commitment to excellence and a deep sense of pride in our work, each of us playing a vital role in creating meaningful change,


Here you'll find a diverse range of opportunities that span both consumer and medical solutions and the freedom to shape your career while making an impact on the lives of others. Join us in our mission to create a more connected world, where every voice is heard and every story matters.


Staefa, Switzerland
Practical Trainee


Research & Development delivers hearing solutions and services for people with hearing loss, hearing care professionals, and further related people, in the form of hearing devices, accessories, web services, mobile applications, and PC software.



As an intern in the R&D "Biological Safety and Materials" team you will support the materials engineers in the characterization and performance evaluation of protective coatings for hearing instruments. You will prepare, run, analyze and report a variety of materials characterizations and coating performance tests, as well as improve existing test routines.

This program is limited for 6 months.

Your tasks

Perform material characterization tests (e.g. contact angle, FTIR etc.) Execute and evaluate environmental resistance and reliability tests to assess the performance of different protective coating technologies on hearing aid devices. Develop and/or improve test methods to assess ingress protection and optimize performance Support the evaluation of manufacturability and processability of different coating technologies Analysis, documentation and presentation of the results

Your profile

BSc or MSc student in the field of materials science, mechanical engineering or similar filed Interest in the field of coating technologies Flair for laboratory hands-on work Open minded and self-motivated, communicative Good communication skills in English

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 100%
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.


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