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WORKING STUDENT (M/F/D) MECHATRONICS/MECHANICAL ENGINEER (20H/WEEK)

Berlin
Part-time
Intern / Student

Your mission

As a Mechatronics/Mechanical Engineer in our R&D team, your mission is to support the design, prototyping, and hands-on development of innovative battery manufacturing solutions. You will play an important role in advancing our process development by combining CAD modelling, 3D printing, and hands-on mechanical/electrical skills. This position offers a unique opportunity to contribute to the engineering of next-generation battery manufacturing, working closely with an international and technology-driven team to support our journey. We are looking forward to meeting a self-motivated, reliable team member with strong attention to detail and a proactive problem-solving approach, who can thrive in a collaborative, fast-paced start-up environment.

Your tasks

  • Design and modify 3D CAD models for manufacturing prototypes, machines, and fixtures.
  • Use of 3D printing technologies (FDM, SLA/DLP) and basic machining tools, including drilling and milling
  • Cable assembly, routing, dimensioning, and crimping
  • Select, purchase, and dimension automation components for motors, sensors, pneumatic actuators, and related systems.
  • Participate in hands-on execution by assembling and commissioning prototypes and assisting with testing setups to evaluate mechanical functionality and design robustness.
  • Document designs, test setups, and findings to support future development and enhance design iterations.

Your profile

Absolute Must-Haves:
  • Currently enrolled in a degree in Mechatronics or a related field
  • Proficient in CAD modelling, bonus point if you have experience in Autodesk Inventor
  • Competence in hands-on mechanical skills in basic machining for prototype assembly and testing
  • Fluent in speaking English – our company language is English, incl. all the internal communication and meetings.
Good-to-Haves:
  • Experience with 3D printing and rapid prototyping methods.
  • Experience in pneumatic systems, fluid flow control, and process automation is a valuable plus.
  • Experience in electrical cable assembly and cable routing/dimensioning/crimping, etc.

About us

Headquartered in Berlin, Germany, theion GmbH is a pioneering high-tech start-up revolutionizing the mobile battery market. We specialize in the development and production of Crystal Batteries, addressing the world's most significant energy storage challenges across various sectors, from aerospace to consumer electronics. Our innovative approach utilizing sulfur in its crystal form promises to triple energy density while significantly reducing costs and environmental impact.