Factorial Energy is transforming battery technology to enable safe, scalable, and high-performance cells for electric vehicles. Operating out of its world-class research and development facility in Woburn, MA. Factorial holds a portfolio of solid-state innovations, including its segment-leading FEST™ (Factorial Electrolyte System Technology)

Our Purpose is to enable a sustainable future

Our Vision is to drive the revolution of a wireless, fossil fuel-free society

Our Mission is to provide the highest performing, most sustainable and safest batteries to power Electric Vehicles, Homes and Businesses


Your Role in achieving this will be as our Senior Simulation Engineer


Factorial is a fast-growing business attracting talent from all over the world to help us on our mission to build the best batteries to power Vehicles, Homes and Businesses. We’re looking for a Sr. Simulation Engineer who will be responsible for Factorial’s cell simulation and cell behavior analysis for our new lithium metal battery and Li-ion cell. The successful candidate will assume a lithium-ion cell modeling and simulation development role joining Factorial’s team in Woburn, Massachusetts. This role requires experience in cell simulation, testing, thermal behavior, basic cell design engineering, and data analysis. This candidate will be involved in customer basis product and project with R&D projects. The candidate must demonstrate excellent written and verbal communications skills to facilitate exchanges between various departments within the company. This position will report to the engineering division of Factorial Energy.


  • Key member for Factorial’s next generation lithium secondary battery simulation
  • Lead on cell algorithms creation, optimization, analysis, state estimation
  • Responsible for overseeing Li-secondary battery cell thermo-electrochemical and mechano-electrochemical simulations by optimizing materials and cell design parameters and analyze performance
  • Cell level physics-based modeling for customer including calendar and cycle degradation
  • Provide engineering support to project teams
  • Collaborate and communicate with customers directly on cell behavior
  • Electrical engineering background to understand impact of cell behavior and performance estimation.
  • Using modeling and simulation tools like COMSOL, MATLAB,
  • Machine learning, a plus
  • Proper chemical understanding of Li Ion and related cell chemistries, a plus


  • MS or PhD degree in Chemistry, Chemical or electrical or mechanical Engineering
  • 5+ year experiences as a simulation engineer
  • Deep and fundamental knowledge and experience in modeling for degradation of life and impedance working with OEM customer
  • Familiar with Li metal battery (preferred) or Li-ion battery (at minimum) cell performance simulation and testing data analysis
  • Proven track record of success in bringing projects to fruition
  • Proficiency in the lithium metal battery cell behavior a plus
  • Willingness to execute on multiple tasks in a fast-paced start-up environment

What’s in it for you:

  • Free catered lunches Monday through Friday
  • Unlimited Paid Time Off
  • Ability to say you helped build a more sustainable future
  • Competitive Salary + Stock Options
  • Medical, Dental, 401k
  • Free Gym Membership
  • Education Reimbursement

Apply for this Job

* Required