Assembly Process Engineer
On-site · Cheonan, Chungcheongnam-do, South Korea
Job Summary
Factorial Energy seeks a Consumer Battery Cell Assembly Process Engineer to develop and optimize pouch stacking cell assembly processes for lithium-ion battery applications. The role covers post-stacking to sealing, electrode alignment, stacking compaction, tab forming, and pre/sealing activities; establishment and maintenance of SOPs, PFMEA, and Control Plans; collaboration with R&D for silicon anodes and process scaling from EVT/DVT/PVT to MP; optimization of parameters to improve UPH, OEE, and yield; evaluation of fixtures, tooling, and automation; debugging and validation of assembly equipment; and documentation of repeatable technical solutions. Strong communication across R&D/Quality/Equipment and proficiency with 5Why, Fishbone, and DOE methods are required.
Required Qualifications
- Bachelor’s degree or higher in Mechanical Engineering, Materials, Automation, Electrochemistry, or related fields
- 3+ years of experience in the lithium battery industry
- At least 2 years of experience in pouch stacking cell assembly processes
- Experience in full-cycle projects from process development to mass production (≥1 mass production project)
- Familiarity with pouch stacking cell structures and key assembly control points
- Understanding and application of process development workflows (DFMEA→ PFMEA → CP → SOP)
- Basic mechanical assembly knowledge, ability to interpret mechanical drawings, and understand assembly tolerances and mechanisms
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