Battery Pack Engineer

at SOLiTHOR’s Centre of Excellence for SOLID-STATE rechargeable lithium battery technology.


Who we are

SOLiTHOR is a recently created high tech company which is utilising 10 years of research and the facilities of imec, the prestigious Belgian R&D institute in nanoelectronics and digital technologies.

Building on this unique and patented research, SOLiTHOR aims to develop and commercialise the next solid-state lithium batteries for the electromobility sector. Our mission is to scale up our solid-state battery technology and apply it to electric vehicles – in the air, on land and sea.

To strengthen our growing team of engineers and technologists, we are looking for a motivated and talented Battery Pack Engineer.

Main responsibilities

  • Design modules and packs for HV battery systems from concept to production
  • Analyse the pack architecture to accommodate the unique stack pressure, swelling behaviour and thermal behaviour of SSB cells
  • Manage and create CAD files as needed for different battery components to meet the component and system level targets
  • Collaborate with the BMS engineer to guide the development of technical specifications and engineering designs of the BMS
  • Support engineering tools development to provide trade-off studies between packaging efficiency, thermal efficiency, noise vibration and harshness before and/or during design phases
  • Work with the cell testing engineer to develop quality documents (DFMEA, PFMEA, Control Plans, Engineering Specification)
  • Explore the root cause and solve production problems and failures

Skills and personality

We are looking for an entrepreneurial individual who has a hands-on approach to work - a creative problem solver who is motivated and passionate about the profession and solid-state technology in particular.

Qualifications and experience

  • Bachelor’s degree in Mechanical Engineering or equivalent highlighting relevant experience
  • 7+ years of product design experience
  • Hands-on experience in designing high-volume assembly and battery modules/packs
  • The ideal candidate will have some experience in electrified propulsion system design and knowledge of BMS technologies
  • Familiar with CAD software and assembly drawings
  • Excellent understanding of mechanical structures, and electrical and thermal analysis of a battery system, especially for high-voltage and high-power applications
  • Knowledge of BMS technology and hardware test and validation for battery packs
  • Fluent in English

Other considerations

  • Results-driven and able to deliver quality output within tight deadlines
  • The ability to thrive in a startup and ambitious environment where teamwork is key
  • Strong analytical mind, and a comprehensive understanding of the relationships between processes, material and interface characteristics and the performance of those materials in the battery device
  • Strong communication and reporting skills. A good level of English is mandatory given the multinational character of the start-up.
  • Flexible and able to respond to rapidly changing (technological/technical) circumstances
  • Based in Belgium or willing to relocate

The opportunity

We offer you the opportunity to develop the next generation solid-state lithium batteries in a challenging environment. In doing so, you will take on a crucial role within our talented, passionate and multicultural team. You will have the opportunity to help build a company that will have a major global social impact.

SOLiTHOR not only offers you access to top class equipment and laboratory facilities, but also a competitive salary package with the following benefits:

  •  Contract of indeterminate duration (40h/week, 12 additional holidays)
  • Meal vouchers worth €8/working day
  • Hospitalisation insurance
  • Group insurance
  • Home office compensation
  • Stock options


You will be based at Energyville in Genk, where you will be surrounded by like-minded, inspiring people. SOLiTHOR will move to its new premises in Sint-Truiden, in August 2023.

Interested to join our promising and challenging start-up?

To apply please send your CV to our HR officer Asho Brouckaert and include the job title in the subject line.

Back to job listing