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Cell Product Design Engineer

SES
Woburn, Massachusetts
Full Time
Posted November 26, 2025
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Job Description

The role involves leading the design, development, and lifecycle management of pouch-type Li-ion battery cells for electric vehicles and energy storage systems, ensuring successful transition from prototype to mass production while collaborating across R&D, testing, and manufacturing teams.

Key Responsibilities

  • Lead the technical design and lifecycle management of pouch-type Li-ion battery cells for various applications.
  • Manage the entire product lifecycle from concept and prototype development to mass production.
  • Design and validate NCM-based pouch cells for commercial platforms such as scooters, e-bikes, and EVs.
  • Drive the NPI process ensuring robust design practices and quality assurance methodologies are followed.
  • Collaborate with R&D, testing, and manufacturing teams to define product specifications and ensure alignment with safety and performance standards.

Requirements

  • M.S. in Materials Science, Chemical Engineering, or a closely related engineering field
  • A B.S. in Inorganic Nonmetallic Materials Engineering or equivalent is required
  • Deep, hands-on expertise in pouch-type Li-ion battery cell design and NCM-based cell validation
  • Proven experience managing the full battery product lifecycle, including NPI (New Product Introduction) from prototype to mass production
  • Direct experience implementing quality methodologies such as DFMEA (Design Failure Mode and Effects Analysis) and DVP R (Design Verification Plan and Report) within a manufacturing or R&D environment
  • Strong foundational knowledge of Battery Chemistry and its application to high-performance cell design for EV and ESS UAM
  • Previous experience at EV battery manufacturers or high-volume cell production companies
  • Experience designing cells for various commercial platforms beyond EV, such as stationary storage and micromobility
  • Experience leading cross-functional design efforts and serving as a key interface between R&D and manufacturing

Benefits & Perks

highly competitive salary
robust benefits package including comprehensive health coverage
attractive equity stock options program
opportunity to contribute to meaningful scientific projects with broad public impact
work in a dynamic, collaborative, and innovative environment
significant opportunities for professional growth and career development
access to state-of-the-art facilities and proprietary technologies

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