
Audio- & Hardware-Prototyper (m/w/d) | Freelance oder Werkstudent
Required skills
Job description
Keeper Lockers posted this role. Below, we break down what it means for a working student in Berlin: your weekly hours, take-home pay and visa limits.
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Description provided by Keeper Lockers
This is not a position at Keeper Lockers. I am sharing this ad for a private and independent product project within my family.
What is it about?
We are developing a small design object that surprises people with sound and light. It should feel compact and high quality, and none of the technology should be visible from the outside. The first step is a working proof of concept that shows the idea really holds up in practice.
What you will do
• Build a working prototype based on a compact brief
• Test and compare different speaker, housing and chamber variants
• Bring sound, light and the opening mechanism together into one experience
• Keep iterating until the result is truly convincing
What you bring (not all of it, but a good part)
• Small speakers and electroacoustics
• Audio electronics and amplifiers
• Microcontrollers and embedded systems
• LED and lighting control
• LiPo batteries and USB-C charging electronics
• CAD, 3D printing and mechanical prototyping
• Fitting many components into a very small space
Your field of study matters less to us than hands-on experience, so ideally you have already built your own hardware prototypes that actually work. You don't need to have built a product exactly like this one before.
The setup
• Freelance work or a part-time student job
• Project-based and paid, with a fixed budget for the first phase
• Remote work is possible, although being based in or near Berlin is a plus
• Details about the product will be shared after signing a short NDA
Interested?
Just send me a short message that includes
• two or three technical projects you've worked on (photos, videos or links are great)
• what your specific contribution was
• the tools and technologies you used
• your rough availability
Project examples tell us far more than any CV. German is a plus, not a must.
Working student essentials
What this Engineering working student role in Berlin means for you: the weekly-hours rules, the social-contribution perks, and what international students should check before applying.
Weekly hours
Working students may work up to 20 hours a week during the semester and full-time during the breaks. Staying within this keeps your student status and the Werkstudent benefits.
Working student rulesSocial contributions
Under the Werkstudentenprivileg you're exempt from health, care and unemployment insurance contributions — only pension insurance applies. That leaves more net pay than a regular job.
Check your insuranceInternational students
Non-EU students can work 140 full or 280 half days per year (raised from 120/240 in March 2024). A working student contract usually fits within this — confirm the exact limits printed on your residence permit.
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