Senior / Staff Welding & Sealing Equipment Engineer

The role

This person will own the full-cycle development, commissioning, customization, optimization, and mass production scaling of automatic welding and sealing equipment for the Silicon Power Cell pouch cell line. They will lead R&D, prototype debugging, pilot verification, and mass production iteration.

What you will do

• Lead full-lifecycle development, commissioning, and mass-production validation of automatic welding and sealing equipment
• Conduct equipment review, FAT/SAT acceptance and IQ/OQ/PQ qualification
• Upgrade and retrofit mass-production welding and sealing equipment to improve OEE, production yield and line capacity
• Optimize welding fixtures, sealing structures and core process parameters
• Build complete standardized equipment management systems including SOPs, maintenance schedules, calibration specifications, PFMEA, control plans, and equipment failure databases
• Collaborate with cross-functional teams and external vendors
• Optimize laser welding energy control, servo positioning logic, and sealing pressure/temperature closed-loop parameters
• Lead equipment technical transfer from lab/pilot to mass production
• Adopt 8D, DOE, SPC, and root-cause analysis to resolve welding and sealing abnormalities

Required qualifications

• Bachelor's degree or above in mechanical, mechatronics, electrical automation, materials, chemical engineering or related fields
• 3+ years of experience in pouch cell welding & sealing equipment development, retrofit and production ramp-up
• 2+ years of professional experience in laser welding and thermal sealing equipment structure and control logic
• Skilled in welding energy tuning, track precision control, temperature/pressure parameter calibration and sealing uniformity optimization
• Capable of mechanical/electrical drawing reading and CAD/SolidWorks fixture design
• Familiar with laser control system, servo motion, constant temperature-pressure control and precision automation systems
• Proficient in DOE, PFMEA, Control Plan, 8D and root cause analysis
• Independent in equipment troubleshooting and technical optimization
• Experienced in pouch cell welding & sealing line NPI and mass production ramp-up projects
• Equipped with cross-functional coordination, project management and overseas vendor communication abilities
• Competent in on-site troubleshooting and English technical documentation
• Proficient in English for technical document reading, global technical meetings and technical report delivery

About the company

Factorial Energy is a U.S.-based solid-state battery company developing next-generation e-mobility platforms. They partner with global leaders including Mercedes-Benz, Stellantis, Hyundai, and Kia.