Factorial Energy
Battery Manufacturing
AssemblyProcessEngineer
Neural analysis suggests this role is
optimal for Mid+ candidates.
“Assembly Process Engineer at Factorial Energy. Skills: Assembly process development, Pouch cell assembly, Process optimization. Lead development of pouch stacking cell assembly processes. Optimize pouch stacking cell assembly processes”
Industry & Context.
Root cause analysis; Defect analysis
What They're Looking For.
Must Have
Proficiency in mechanical drawings, Understanding of assembly tolerances, Proficiency in DOE, Proficiency in SPC, Experience with data analysis tools, Experience with defect analysis methodologies, Bachelor's degree in Engineering or related field, Experience in pilot line setup, Experience in new production line setup
Nice to Have
Experience in pilot line setup from 0 to 1, Experience in new production line setup from 0 to 1, Familiarity with IATF 16949, Familiarity with APQP systems
What You'll Do.
Lead development of pouch stacking cell assembly processes
Optimize pouch stacking cell assembly processes
Define process windows for assembly parameters
Maintain process windows for assembly parameters
Establish CTQs for assembly processes
Establish process standards for assembly processes
Maintain SOPs for assembly process steps
Maintain PFMEA for assembly process steps
Maintain Control Plans for assembly process steps
Adapt assembly structures for silicon anode expansion
Adapt assembly processes for silicon anode expansion
Minimize stacking flatness deviation
Minimize sealing reliability risks
Full Job Description
Who We Are Factorial Energy is a pioneering U.S.-based solid-state battery company driving the future of energy storage and electrification. Partnered with global leaders including Mercedes-Benz, Stellantis, Hyundai, and Kia, Factorial is at the forefront of developing next-generation e-mobility platforms for commercial, defense, and consumer applications—spanning electric vehicles (EVs), drones, eVTOL aircraft, power tools, marine systems, robotics, and more. The company has achieved multiple industry firsts, including being the first to power a demonstration vehicle with a global OEM (Mercedes- Benz) which achieved over 1,200 km (749 mi) of range, and the first to earn UN 38.3 certification for automotive-sized lithium-metal solid-state cells, the first to deliver B-samples of automotive-sized solid-state batteries to major OEMs. The Opportunity: Factorial Energy is seeking an Assembly Process Engineer to join our team in our Cheonan, South Korea location. This person will be responsible for the development, optimization, and scale-up of pouch cell assembly processes for our Silicon Power Cell line, covering the full assembly chain from post-stacking through final sealing. The ideal candidate brings deep hands-on expertise in pouch stacking cell assembly, is comfortable driving yield improvement and process standardization, and thrives in an early-stage, fast-moving manufacturing environment. In this role, you will: Lead development and optimization of pouch stacking cell assembly processes covering electrode alignment, stacking compaction, tab forming, pre-sealing, and final sealing Define and maintain process windows for all key assembly parameters, establishing CTQs and process standards Establish and maintain SOPs, PFMEA, and Control Plans for all assembly process steps Adapt assembly structures and processes to accommodate silicon anode volume expansion characteristics, minimizing stacking flatness deviation and sealing reliability risks Collaborate with R ab
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