Working Student for Battery Integration

Your Role

The Working Student Battery Integration supports the Battery Integration Engineer in integrating new battery modules into the STABL BESS systems.
The role contributes to battery testing, technical documentation, data analysis, and the continuous improvement of the battery integration process. The Working Student helps ensure that relevant battery information is complete, test results are traceable, and batteries can be handled safely and consistently throughout the value chain.
The role works closely with Battery Integration, Mechanical Engineering and Testing.

Your mission

• Support the technical evaluation and integration of new battery modules.
• Prepare, perform, and document battery-related tests under the guidance of the responsible engineer.
• Collect, maintain, and analyse battery specifications, test data, certificates, and technical documentation.
• Compare battery requirements with STABL system requirements and identify missing information or inconsistencies.
• Assist with the preparation of test setups, battery samples, measurement equipment, and test environments.
• Analyse measurement data and prepare summaries for engineering reviews.
• Contribute to improving battery integration processes, test methods, and technical documentation.

Your profile

Technical Competences

• Ongoing studies in Electrical Engineering, Mechanical Engineering, Mechatronics, Energy Technology, Automotive Engineering, Physics, or a comparable technical field.
• Basic understanding of batteries, electrical systems, and measurement technology.
• Interest in lithium-ion battery technology and energy storage systems.
• Ability to understand technical specifications, datasheets, drawings, and test procedures.
• Basic knowledge of data analysis and technical documentation.
• Initial experience with Python, CAN communication, or battery test systems is a plus.
• Good written and spoken English.

Personal Competences

• Structured, careful, and detail-oriented way of working.
• Reliable, proactive, and eager to learn.
• Analytical thinking and a hands-on approach to problem-solving.
• Ability to document technical work clearly.
• Good communication skills and the ability to collaborate with multidisciplinary teams.

Why STABL Energy?

STABL Energy is one of the most innovative start-ups in the energy transition, ees Award winner 2022 , pv magazine award winner 2025 and named a global Top100 Energy Start-up . We are funded by renowned and experienced Tech VCs from Germany, Denmark and Switzerland.

What you’ll love about working with us:

• Agile, open & innovation-driven culture with flat hierarchies, quick decision-making processes and real ownership
• Company pension scheme to support you plan for the future
• Flexible working hours, a hybrid work model, and the option to work remotely from abroad
• Digital meal vouchers with Circula Lunch - enjoy tasty lunches on us!
• Monthly benefit in kind to spend at your favourite stores
• Corporate benefits portal with exclusive employee discounts
• Regular team-building activities and team events
• Company EGYM Wellpass membership to train with no limits at numerous fitness clubs across Germany

Ready to innovate, impact, and inspire? Apply Now!
We’d love to hear from you to help us build the energy system of the future! Even if you don’t meet 100% of the requirements, we encourage you to apply anyway. Our motto is 'Hire for attitude, train for skills', so we value potential and lifelong learning just as much as experience.

About us

We make energy storage stable and secure the future of energy. As technological pioneers, we develop storage solutions that extend battery life cycles and encourage the sustainable use of resources. Our approach is simple: we never recycle a battery too soon. STABL Energy is more than just a traditional start-up company. Ready to be part of us, innovate, impact, and inspire?