Who are we?
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, the Philippines, 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 System Development department is currently looking for interns who can support the following project.
Project Proposal
Development of Automated Test Methods for Hearing Instruments Using a Collaborative Robotic (COBOT) Arm
Goal of the project:
Design and implement a reliable, automated COBOT-based test setup to simulate user handling of hearing aid components, enabling accurate, repeatable testing through integrated sensors, data acquisition, and system validation.
Your profile
- Currently studying: Mechanical Engineering, Mechatronics, Robotics, Applied Physics, Electrical Engineering or something similar.
- Basic knowledge of Python, C++, or ROS, and interest in 3D CAD tools like SolidWorks or Fusion 360
- Strong interest in experimental design, sensor integration, data analysis, and system validation
- Exposure to instrumentation (e.g., load cells, strain gauges, DAQ systems), automation, or COBOT programming is a plus
- Some experience with MATLAB, LabVIEW, or Python for data collection and analysis
- Understanding of basic concepts in calibration, uncertainty, and mechanical testing
- 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 2025 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;
- Flexible workhours;
- 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 to jobsatsonionNL@sonion.com. Please include your internship dates, type (orientation or graduation), and indicate which project aligns with your studies, skills, and interests.