Internship Industrial Design Engineering – Graduation Project; Sonion NL

Position: Internship Industrial Design Engineering – Graduation Project (Sonion NL)
Sonion is a global leader in the market for transducers used in the hearing aid and audio industry, and our ambition is to grow from this strong core. Our vision is:
We help the world listen. We are dedicated to enhancing the quality of life for people who rely on hearing products. Are you passionate about making a difference in people’s lives? So are we!
The Sonion Group develops, manufactures, and sells product solutions to customers who manufacture hearing instruments and other acoustic solutions. Sonion Nederland B.V (Sonion NL) is the main R&D center within transducers and modules, but Sonion NL also has sales supportive activities such as Application Engineering, CQS and administrative support functions. Sonion has facilities in Denmark, the Netherlands, Vietnam, USA and China, wherefrom our (more than 6000) colleagues work together across all locations.
At Sonion we believe in the importance of investing in new talent. We want to introduce students to an environment where they are given responsibility and the freedom to develop their skills. In Hoofddorp you will join approx. 100 of our colleagues as we design new products for the hearing health and pro audio market. We offer internship positions every semester in various departments and are always on the lookout for new talent to join our team.
The Department  The System Development department in Sonion specializes in developing high-performance components for the hearing aid industry, including domes, connector systems, and microphones. With a team of expert engineers, we drive innovation through advanced design, simulation, and development methodologies.
We also pioneer robust testing solutions to ensure our products perform reliably under the demanding conditions hearing aids face daily. Our mission is to deliver cutting‑edge components that enhance hearing technology and improve lives.
The Project  An investigation into Balanced Armature and Voice Pick Up ITE Modules.
Sonion’s balanced armature receivers and Voice Pick Up (VPU) work very well in separate use cases. The VPU is a bone conduction microphone, which Sonion developed. We have yet to identify how the two components would work, when embedded into a single unit like a custom earpiece. The focus of the investigation would be to research potential failure modes, design solution around those and build prototypes to validate the designs.
The projects’ goal will be to investigate different solutions, build and validate concepts by means of prototypes and testing. We also expect an investigation into use case scenarios and “competitor” analysis.

Your profile   Currently studying:
Mechanical Design/Engineering or Industrial Product Design at a bachelor’s or master’s level
Interested in Audio and electronics would be preferred
Eager to learn, hands‑on, and proactive with a creative, open‑minded attitude
Comfortable communicating in English;
Dutch is a plus
Team‑oriented and able to collaborate in a diverse, international environment
Equally important to your knowledge and experience, are you as a person. We are looking for a person, who is proactive, eager to learn, hands‑on and results driven. You can also interact effectively with people from all backgrounds.
What we offer you   Internship starting September 2026 and lasting for 5-6 months with possible extension;
Your own workspace with all the hardware you will need;
Compensated travel expenses if you don’t have your Study OV card;
€605 monthly internship allowance;
Free parking in our parking lot;
An office located a 5-minute walk away from Hoofddorp train station.
We offer a professional, supportive environment where you will gain real responsibility and apply your knowledge from day one. You will regularly reflect on your progress with your supervisor. At Sonion, an international and inclusive workplace, connecting with colleagues is easy. Ready to grow your skills? Apply now!
Further information and application  Did this spark your interest? Email us your motivation letter and your CV in English  Please include your internship dates, type (orientation or graduation), and indicate which project aligns with your studies, skills, and interests.

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