Manager Senior Manager, Cell Product Development

Factorial Energy

Location not specified

Full Time

Posted November 18, 2025

Energy Storage

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Job Description

The position involves leading the development and optimization of next-generation solid-state battery cells, managing engineering teams, and collaborating with manufacturing and external partners to ensure successful product design, validation, and mass production.

Key Responsibilities

Manage multiple cell design teams to develop different battery cells
Define cell bill of materials, create cell drawings, and ensure design meets requirements
Lead the design, development, and validation of next-generation battery products
Conduct root cause analysis and implement mitigation plans for design improvements
Perform Design for Manufacturing (DFM) and lead Failure Mode Effects Analysis (FMEA)
Innovate and validate lithium secondary battery processes and equipment
Develop and optimize large cell fabrication processes for manufacturing and quality
Provide engineering support to resolve production and quality issues
Lead design-for-cost and value-engineering initiatives
Collaborate with internal teams and external suppliers to meet manufacturing capabilities
Respond quickly to OEM customer requests and prepare RFQ/RFI documentation

Requirements

5 years of experience in silicon chemistry related lithium-ion battery product development from an established cell supplier or automotive OEM
The silicon cell development experience is mandatory
2 years of management experience
Experience in mass production of lithium batteries
Good written and basic verbal communication skills in English
Ability to be fully located on-site in Korea, working closely with the US team, which requires late night or early midnight work

Benefits & Perks

Work fully located on-site in Korea, with occasional late-night work to coordinate with US team

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