INTERNSHIP DETAILS

Practical Trainee - Sound Quality Engineer (m/f/d)

CompanySonova AG
LocationStäfa
Work ModeOn Site
PostedJuly 17, 2026
Internship Information
Core Responsibilities
The trainee will configure and operate hardware and software to assess audio quality during hands-free phone calls. They will conduct measurements, analyze results using Python, and document findings for stakeholders.
Internship Type
full time
Company Size
7287
Visa Sponsorship
No
Language
English
Working Hours
40 hours
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About The Company
Around 25% of the world’s population is living with hearing loss. At Sonova, we envision a world where everyone enjoys the delight of hearing and lives a life without limitations. From personal audio devices and wireless communication systems to audiological care services, hearing aids, and cochlear implants. Our product brands – Phonak, Unitron, Sennheiser (under license), and Advanced Bionics – create compelling new products to offer the optimal solution for an ever growing consumer base through our globally diversified sales and distribution channels, including our well established global audiological care business. With a presence in over 100 countries and more than 19,000 employees, we leverage our global infrastructure and local roots. We aim for an inclusive work environment and culture that fosters a good balance of family and work-life for everyone. Our workforce is made up of 110 nationalities across 4 generations. In 2006, Sonova founded the non-profit Hear the World Foundation, which seeks to give children living with hearing loss access to audiological care in low- to middle-income countries.
About the Role
Location: Stäfa, Switzerland
Fulltime, 4-6 Months
 
At Sonova, our Research & Development (R&D) department delivers innovative hearing solutions and services for people with hearing loss and hearing care professionals worldwide. Ensuring high audio quality in every life situation and providing the best hearing performance experience to our customers is the primary goal of this team.
To further improve the development and testing of audio quality and hearing performance in realistic scenarios, particularly during phone calls, we are looking for a motivated intern to join our team in Stäfa for up to six months.
 
Your tasks
 
  • Become familiar with existing hardware and software setups used for assessing audio quality during phone calls
  • Configure and operate Sonova hearing instruments, smartphones, and laboratory equipment for audio quality during hands-free phone calls
  • Create, modify, and maintain measurement objects and test configurations for audio quality assessments
  • Conduct measurements and tests to evaluate phone call audio processing performance with selected smartphone and hearing device models
  • Analyze measurement results using existing software tools and support customization through basic Python scripting
  • Document test procedures, results, and recommendations clearly for team members and stakeholders
 
Your profile
 
  • BSc or MSc in Electrical Engineering, Computer Science, Acoustic Engineering, Signal Processing, or a related field
  • Interest in audio technologies, signal processing, telecommunications, acoustics, or hearing systems
  • Strong analytical and problem-solving skills with the ability to work independently
  • Basic Python programming skills are an advantage
  • Experience working in an acoustic laboratory or with audio hardware is a plus
  • Fluent English
 
What We Offer
 
As one of the world’s leading hearing care providers headquartered in Switzerland, we’re committed to building an inclusive culture. We want to create an environment where you can balance a successful career with your commitments and interests outside of work, through our flexible hybrid working model.
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, and an excellent range of foods, sports and cultural facilities.
 
  • Hands-on experience with acoustic measurements, radio testing equipment, smartphones, and hearing instruments
  • Exposure to advanced signal processing technologies and product verification activities prior to product launch #LI-NB1
Key Skills
Audio Quality AssessmentSignal ProcessingPython ScriptingAcoustic MeasurementTelecommunicationsHardware ConfigurationData AnalysisTechnical Documentation
Categories
EngineeringScience & ResearchTechnologyHealthcareManufacturing
Benefits
Flexible Hybrid Working ModelOpen Corporate CultureFlat HierarchiesSupport For Further Training And DevelopmentOpportunities To Take On ResponsibilityFood FacilitiesSports FacilitiesCultural Facilities