Senior Physical Safety Engineer

We are looking for a Principal or Senior Physical Safety Engineer, who wants to be a part of our journey towards becoming the world leading supplier of smart and sustainable lithium battery solutions
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Polarium is a Swedish company dedicated to providing the best performing, safe and sustainable energy storage solutions built on lithium-ion technology. Polarium’s headquarters and R&D center are situated in Sweden and the manufacturing in Mexico. Through its global sales channels and representation in the US, South Africa, Sweden, UK, New Zealand and Indonesia, Polarium serves customers worldwide. Today, our market-leading solutions are in use on all continents and in all climate zones – from the Equator to the Arctic.


About the Opportunity

Polarium is establishing an applied research group focused on physical safety & lithium-based products. This group will target challenges such as fire suppression, thermal run-away and propagation and be responsible to ensure that our technology meets and exceeds requirements from customers, standards & regulation.


We are seeking a Principal or Senior Physical Safety Engineer, to lead and drive research initiatives for physical safety of our lithium based products, on a cell- module- and system level. The role requires the ability to act as a mentor and technical lead within the area and drive pre-studies of new applications and technologies. The position is based at the Polarium HQ in Kista and will report to our CTO. Business trips will occur occasionally, both international and within Sweden.



  • Develop solutions to meet relevant standards, both for product (UL 1973, IEC 62619, UL 9540A, etc.) and installation.
  • Expert within all aspects of physical safety and thermal events.
  • Design modularized design blocks with re-use capabilities.
  • Drive research efforts within the physical safety area.
  • Develop design blocks or principals that can be included in products or systems.
  • Keep up to date with standards and regulations and keep relevant standards up to date in the Polarium library.


Are you the one?

We are looking for a highly driven and pro-active candidate with a passion for safety engineering, who constantly seeks new knowledge within the area. You should have a minimum of 7 years’ experience in similar positions, knowledge from agile development and enjoy a fast growing cooperate environment.  

Qualifications and experience:

  • Experience in batteries
  • Relevant master´s degree
  • Experience within lithium battery and energy storage safety
  • Excellent communication skills
  • Fluent in English, both spoken and written
  • Swedish work permit

What’s in it for you? 

We offer a challenging position at a dynamic and rapid growing company. We have an open and friendly environment where we help each other to develop and create value. Your work will have a true impact on Polarium’s future success. We also offer a competitive bonus package and a high wellness contribution.



Or, know someone who would be a perfect fit? Let them know!

Stockholm - Kista

Jan Stenbecks Torg 17
164 40 Kista Directions +46 (0)8 5454 4000 View page

Multi-cultural Workplace with an Entrepreneurial Spirit

We are a fast-growing multicultural company, headquartered in Stockholm, with employees and customers all over the world. Our employees are our number one asset. We have an open and dynamic culture where everybody can make a difference and contribute to the success of the company.  


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