Cell Assembly Engineer

Adden Energy
Waltham, MA

What you get to do:

  • Design and develop pilot scale processes for manufacturing solid state battery cells
  • Assemble battery cells by using notching stacking welding and packaging processes
  • Work with vendors to customize the equipment and tools based on manufacturing processes
  • Maintain modify and optimize the equipment and tools with vendors guidelines

What you bring to this role:

  • BS or MS degree in mechanical or chemical engineering or related field
  • 3 years of experience in a cell fabrication role in a Li ion battery industrial environment
  • Hands-on experience with multi-layer large format pouch cell assembly processes
  • Experience with all-solid-state-battery development is preferred
  • Cylindrical cell development experience is a plus
  • Experience of vendor qualification and customer interactions
  • A desire to hold your own in a fast-moving environment alongside highly technical peers
  • Ability to work safely and in compliance with all regulations and quality systems

We are happy to offer our team members:

  • Competitive salary versus leading employers in industry commensurate with experience
  • Medical dental and vision insurance
  • Generous employee stock options
  • Three weeks paid time off
  • U.S. Visa Sponsorship possible

Adden Energy is interested in working with every qualified candidate regardless of current U.S. work authorization and would consider sponsoring visas. We value diversity and do not discriminate on the basis of race religion color national origin gender sexual orientation age marital status veteran status or disability status.

Expressions of interest and accompanying resumes should be sent to or apply on LinkedIn.

Posted 2025-11-20

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