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Battery Engineering Intern (m/f/d)


You are interested in topics related to battery systems?

Apply at HagerEnergy GmbH!


We are pioneers

E3/DC develops and produces intelligent “all-in-one” storage systems and electric vehicle charging solutions. All components, from inverter and energy management to batteries, are developed and integrated by us. This including end-to-end services and cloud-solutions. We are around 300 experts (and growing), working from several locations. Our recipe for success: creative freedom and responsibility in the projects, customer proximity and concentration on a common goal – to accelerate the energy transition. E3/DC is a brand of HagerEnergy GmbH and part of Hager Group, one of the leading providers of electrotechnical solutions.


You are actively working on the energy transition

For our headquarters in Osnabrück, we are looking for a Battery Engineering Intern (m/f/d) who is interested in topics related to battery systems and would like to support our Battery Business Team in further developing our battery monitoring, analytics and circular economy solutions.



  • Advance our battery monitoring, analytics, and circular economy solutions
  • Support implementation, and testing of algorithms to improve battery performance, reliability, and safety
  • Extend implementation of battery algorithms to new and upcoming products
  • Improve processing efficiency and reliability of our monitoring and analytics platform
  • Devise visualization and analysis tools for our Support and Service teams
  • Collaborate closely with our embedded and cloud-software developers to scale and automate our algorithms
  • Support ad-hoc topics and ongoing technical solutions



  • Studying electrical engineering, computer science, informatics, or similar (over 2 years of Bachelor’s education required)
  • Good knowledge of Python/MATLAB. C++ is an advantage.
  • Structured and analytics work mode with high pragmatism and getting-things-done attitude
  • Aptitude for interdisciplinary work and willingness to dive into unknown topics
  • Great communicator in German and English
  • Team player and flexible


What we offer

INSPIRING: high decision-making and creative freedom, plenty of room for your own ideas and the common passion to make the world a better place

RESPONSIBLE: being able to change things and make decisions, grow together with the company and shape the future

GROWTH-ORIENTED: ongoing feedback and a wide range of training opportunities

AUTHENTIC: a successful, financially strong premium brand in a future-proof market, customer proximity, start-up character

CHERRIES ON TOP: flexible working hours, possibility of mobile working, e-charging, modern building, various discounts via the Corporate Benefits platform, experience our spirit at larger or smaller events


E3/DC - Simply better

We focus on diversity and would like to invite all people with their individual backgrounds and personalities to apply. Do you have any questions about the vacancy? Please contact Elisa Jöhne via +49 541 760 268 0. We look forward to getting to know you.

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