Testing Technician // mitte

It’s an exciting time to join Mitte. As we move closer to our launch date, we are looking for a Testing Technician to join our team. In this role, you will support the engineering team in creating a robust water purification system. This role will have a direct impact on core Mitte products by testing the performance of hardware components and mineral cartridges during their development phase. Your work will help to move our understanding of sub-system functionality, component reliability, and mineralization forward.


  • Building experimental setups (test-rigs) and operating equipment used to assess the performance of hardware components and the mineralization process
  • Making replicas of current functioning rigs during the product development phase. (Test-rigs contain pumps, valves, tubes, tanks, 3D printed parts as well as electronic components that acquire analog and digital data.)
  • Assembling and setting up all necessary rig components, including soldering wires to drive actuators and read sensors controlled via microcontrollers as well as connecting hydraulic components to route the water flow path
  • Assembling of our central distillation unit including the thermal insulation and internal temperature probes
  • Testing functionality of each subsystem and implementing it in the existing test system (e.g. water drain piping as well as IoT network)

Your Profile

  • You have already applied your knowledge regarding engineering on functional prototypes ( linked to hardware)
  • You have a Bachelor degree in Engineering, Chemistry, or similar experience
  • You have basic knowledge regarding pipes, valves, and pumps, circuitry schematics and basic components, and programming (or a willingness to expand skills in this area)
  • You have hands-on experience with experimental setups
  • You truly enjoy problem-solving and coming up with creative solutions to create a reliable system. You bring an analytical approach to identifying failure modes (root-cause analysis) and clear documentation to keep track of the most common failures
  • You are well organized and proactive, working well independently and as part of the team with members from across the organization.
  • You are able to speak and write English fluently.


  • Familiarity with Arduino and visual studios IDEs, ex: Application of data analysis and data visualization E.g. using Matlab, Python or basic C/C++,
  • Basic knowledge of heat transfer and mechanical design
  • German knowledge is also a plus

Why Mitte?

Our culture and values are central to Mitte’s philosophy. Every day we embrace a more diverse workforce and inclusive environment. We encourage everyone to bring their true selves to work. In addition, you can expect:

  • Flexible working hours
  • Regular team events
  • A flexible learning budget of 1,000 EUR per year
  • Competitive salary and shares in the company
  • A Modern office space with roof terrace in Kreuzberg
  • A Membership for Urban Sports Club
  • 28 vacation days

Mitte is on a mission to provide healthy hydration for Every Body. Having created the world’s first smart water system inspired by the natural water cycle, we are driven to reinvent the way water is consumed globally. Our solution allows users to create personalized mineralized water at home, giving them control over their drinking water while minimizing plastic wastage. Our offer will be extended into an ecosystem covering all user touchpoints. Our process works in two simple steps. First, it purifies water with a proprietary distillation-based method. After the purification, the water is enhanced through a unique, patent-pending mineralization process, where purified water flows through a cartridge that contains several layers of mineral ingredients. Mitte was initiated at the beginning of 2016. Our international team consists of members from over fifteen countries across six continents and is backed by experienced global investors, who share our sustainable vision. We are an entrepreneurial group, excited about using engineering and design to bring innovative and sustainable products to the market.

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