Who We AreFactorial 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:We are looking for a Senior / Staff Power Cell Development Engineer who will be responsible for Factorial’s next-generation cell product development and cell technology. The successful candidate will assume a cell engineering and development role and join Factorial’s team in South Korea. This role will execute new platform development for silicon-based drone cells and LMB power cells in accordance with the technical roadmap, including material, formula, and process evaluations to enable product realisation. The role involves designing cell products according to customer requirements and validating performance, including electrochemical and safety performance, while driving continuous optimization. The engineer will lead NPI activities and be responsible for preparing and releasing all related documentation, including BOMs, DFMEAs, and a sample-building index. The role will participate in technical discussions with customers related to new product development programs and support battery material development, including cathodes (high-nickel NMC), anodes (graphite with silicon-based materials and lithium metal), separators, binders, and current collector foils, while also supporting other internal departments on cell product–related technical issues.<div> </div>Duties and Responsibilities for the power cell development engineer (cover Si drone and LMB power cell):<ul><li>Base on the technical roadmap to conduct the new platform development including the material, formula, process evaluation to make it come true.</li><li>Base on the customer requirements to design the cell products. And validate the performance including electrochemical/safety performance, then conduct the continuous optimization.</li><li>Lead the new produce NPI, Responsible for all the related documents preparation and release, including the BOM, DFMEA and sample building index,</li><li>Follow up the sample building and solve the issue, lead the FA</li><li>Join the discussion with customers about the new product development-related topic.</li><li>Support battery materials developments, for example: cathode (high Ni NMC), Anode (graphite+SiC, Li metal), Separator, new binder, collector foil etc.</li><li>Support the other departments for the cell product related issues.</li></ul> Requirements:<ul><li>At least mater degree</li><li>At least 3years of power cell or drone cell product development experience. Know the lithium-ion battery and lithium metal battery very well. Can lead the product development independantly.</li><li>Good FA/problem solving/data analysis capability</li><li>Good communication with English.</li><li>Rich experience for customer communication.</li></ul> 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 (<a href="mailto:recruitment@factorialenergy.com">recruitment@factorialenergy.com</a>)

Factorial is a dynamic venture-backed company dedicated to creating a sustainable future. With a passionate team of engineers and business professionals, Factorial is developing breakthrough solid-state batteries to offer longer range per charge and increased safety. The company entered joint development agreements with Mercedes-Benz, Stellantis, and Hyundai Motor Company and was recently featured in The Boston Globe and The New York Times.

Senior / Staff Power Cell Development Engineer

Who We AreFactorial 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&nbsp;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.&nbsp;&nbsp;The Opportunity:We are looking for a Senior / Staff Power Cell Development Engineer who will be responsible for Factorial’s next-generation cell product development and cell technology. The successful candidate will assume a cell engineering and development role and join Factorial’s team in South Korea. This role will execute new platform development for silicon-based drone cells and LMB power cells in accordance with the technical roadmap, including material, formula, and process evaluations to enable product realisation. The role involves designing cell products according to customer requirements and validating performance, including electrochemical and safety performance, while driving continuous optimization. The engineer will lead NPI activities and be responsible for preparing and releasing all related documentation, including BOMs, DFMEAs, and a sample-building index. The role will participate in technical discussions with customers related to new product development programs and support battery material development, including cathodes (high-nickel NMC), anodes (graphite with silicon-based materials and lithium metal), separators, binders, and current collector foils, while also supporting other internal departments on cell product–related technical issues.<div>&nbsp;</div>Duties and Responsibilities&nbsp;for the power cell development engineer (cover Si drone and LMB power cell):<ul><li>Base on the technical roadmap to conduct the new platform development including the material, formula, process evaluation to make it come true.</li><li>Base on the customer requirements to design the cell products. And validate the performance including electrochemical/safety performance, then conduct the continuous optimization.</li><li>Lead the new produce NPI, Responsible for all the related documents preparation and release, including the BOM, DFMEA and sample building index,</li><li>Follow up the sample building and solve the issue, lead the FA</li><li>Join the discussion with customers about the new product development-related topic.</li><li>Support battery materials developments, for example: cathode (high Ni NMC), Anode (graphite+SiC, Li metal), Separator, new binder, collector foil etc.</li><li>Support the other departments for the cell product related issues.</li></ul>&nbsp;Requirements:<ul><li>At least mater degree</li><li>At least 3years of power cell or drone cell product development experience. Know the lithium-ion battery and lithium metal battery very well. Can lead the product development independantly.</li><li>Good FA/problem solving/data analysis capability</li><li>Good communication with English.</li><li>Rich experience for customer communication.</li></ul>&nbsp;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 (<a href="mailto:recruitment@factorialenergy.com">recruitment@factorialenergy.com</a>)&nbsp;

Senior / Staff Power Cell Development Engineer

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Factorial Energy

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