Battery Production Technician - Electrolyte Mixing & Filling

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) that 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, and the first to deliver B-samples of automotive-sized solid-state batteries to major OEMs.

Factorial Energy is seeking a Battery Production Technician - Electrolyte Mixing & Filling to join our team in Cheonan, South Korea. This person will be responsible for supporting core manufacturing processes, including Electrolyte (EL) Mixing, Filling, and Degassing.

• Operate the Electrolyte (EL) Mixing process.
• Measure and mix electrolyte and solvents according to SOPs.
• Perform cell filling operations and operate production equipment.
• Carry out the degassing process.
• Report and respond immediately to process abnormalities.
• Record production results and work history.
• Maintain workplace and equipment cleanliness (5S).
• Follow safety procedures when handling electrolytes and chemicals.
• Work closely with engineers to support production.
• Participate in continuous improvement activities.

• Associate degree (2–3 year college) or higher.
• Able to work in a clean room environment.
• Able to follow SOPs with a strong sense of responsibility.
• Good teamwork and communication skills.
• Experience in lithium-ion or solid-state battery manufacturing.
• Experience with Electrolyte Mixing or Filling processes.
• Previous cleanroom experience.
• Degree in Chemical Engineering, Materials Science, or a related field.
• Basic English communication skills for working with overseas engineers.

Work Location: Cheonan, South Korea

Factorial Energy is an equal opportunity employer that values diversity at all levels. All qualified applicants, regardless of personal characteristics, are encouraged to apply.

To request a reasonable accommodation to complete an application, job interview, and/or to otherwise participate in the hiring process, please contact (recruitment@factorialenergy.com