Empowering a Sustainable Future 

Factorial develops breakthrough solid-state battery technology to enable safe, scalable, and high-performance cells for electric vehicles. Our portfolio of solid-state innovations includes the segment-leading FEST® (Factorial Electrolyte System Technology), which has been scaled in 100+Ah cells, works at room temperature, and is compatible with existing lithium-ion battery manufacturing equipment. With strong OEM backing, including joint development agreements with Mercedes-Benz, Stellantis, and Hyundai Motor Company, a world-class team of scientists, engineers, and business professionals, and cutting-edge R&D facilities, Factorial is pushing the boundaries of battery technology.   

The Opportunity: 

Factorial Energy is seeking a Test Engineer or Senior Test Engineer to join us in our Billerica and Methuen locations. This person will be responsible for leading the internal testing efforts supporting our FEST electrolyte developmentThis includes validating the scale up of our solid-state chemistries as we take them from R&D scale to EV packs. The ideal candidate will have experience running/managing battery cycling testing, battery abuse testing, and be familiar with battery data analytics.  

In this role, you will:

  • Work with a team of experienced engineers to conceive/implement new testing techniques to evaluate the performance of novel cell chemistries.
  • Take part in evaluation and interpretation of complex tests and experiments, failure analysis and diagnostics.
  • Organize tests/DOE and testing equipment/cyclers for EV cell validation.
  • Prepare and execute tests according to validation plan.
  • Test protocol programming.
  • Test laboratory daily management (testing parts (cables, alligator clips…), small devices ordering and management).
  • Support external institutes for testing setup, commissioning, and troubleshooting. 

We are looking for people who:

  • Have a university degree in materials, chemical, electrical, or mechanical engineering, or related engineering background.
  • Have at least 2 year's experiences in battery test labs.
  • Have experience in battery validation (OEM/major battery manufacturer preferred).
  • Have strong problem-solving abilities.
  • Are self-motivated.
  • Have excellent technical communication skills.

Some of our competitive benefits include: 

  • Medical, dental, and vision insurance 
  • Generous paid time off  
  • 401(k) plan that includes employer matching funds  
  • Education assistance plan  
  • Life insurance and disability coverage  

Work Location: 
805 Middlesex Turnpike, Billerica, MA 01821 & 501 Griffin Brook Dr, Methuen, MA 01844

Factorial Energy is an equal opportunity employer that values diversity at all levels. All qualified applicants, regardless of personal characteristics, are encouraged to apply. To request a reasonable accommodation to complete an application, job interview, and/or to otherwise participate in the hiring process, please contact (recruitment@factorialenergy.com). 

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