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Hiwi / Master student Fuel Cell Development

Published:

Dec 19, 2025

(f/m/d)

Freiburg im Breisgau, Germany

Job Type: 

full time/part time

ionysis is looking for a HiWi / Master Student

ionysis develops next-generation membrane electrode assemblies for electrochemical converters like electrolysis cells for the generation of green hydrogen. Spun out from the university in 2022 and based in beautiful Freiburg, we are looking for a student assistant / Hiwi student (f/m/d). You will support our fuel cell tech team with electrochemical testing of novel components.

 

What we do

 

To stop climate change and reach Net Zero, ionysis seeks to decarbonize industry with innovative electrochemical devices. We focus on the core of any electrochemical converter: the membrane electrode assembly (MEA). We develop and manufacture MEAs based on the most performant fluorine-free materials for hydrogen technology, including fuel cells and electrolysers. As a spin-off from Hahn-Schickard and the University of Freiburg, we combine scientific excellence with entrepreneurial spirit to bring our innovations to market and scale.

Your responsibilities

 

  • Assist in the fabrication of catalyst-coated membranes (CCMs) 

  • Operate and maintain fuel cell test benches for electrochemical evaluation.

  • Conduct data analysis and documentation of results.

  • Support general laboratory organization and experimental setup.

  

Your qualifications

 

  • Strong team player and getting-things-done mentality

  • Enrolled in a Bachelor’s or Master’s program in chemical engineering,

  • materials science, microsystems engineering, physics, or a related field (e.g. Sustainable Systems or Sustainable materials)

  • Interest in fuel cells, electrolysis, electrochemistry, or energy materials.

  • Practical skills in lab work; experience with coating, printing, or electrochemical measurements is an advantage.

  • Independent, reliable, and team-oriented working style.

  • Proficiency with common office software

  • Business fluency in English

 

What we offer

 

  • Opportunity to join a leading german green-tech start-up

  • A young and diverse team with flat hierarchies

  • A modern and well-equipped office in Freiburg

  • Flexible working hours between 30-80 h / month

  • Duration of 6 months with possibility for extension or pursuing a M.Sc. thesis

before you apply

Make sure you application is complete:

  • CV

  • Short motivational letter

  • Certificates

  • References, if applicable

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Send your application as one PDF file to Lena Kehry via  hr@ionysis.com

apply
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