Senior HR Manager
Factorial Energy
Company Overview
Factorial Energy
HeadquartersWoburn, Massachusetts, United States
Founded2013
SizeApproximately 150 employees (source: linkedin.com). Factorial has raised over $65 million and achieved a $1 billion valuation (source: batteryburnbook.com).
What They Do
Factorial Energy specializes in the development of solid-state batteries, which are pivotal for various applications including electric mobility, defense, AI/robotics, aviation, power tools, marine vehicles, consumer electronics, and energy storage systems. Their technology emphasizes high energy density, achieving 350-450 Wh/kg compared to the 200-300 Wh/kg typical of current electric vehicle (EV) cells. Additionally, Factorial's batteries are designed for enhanced safety, fast charging capabilities, and a wide operational temperature range from -30°C to 45°C (source: factorialenergy.com).
The core of their innovation lies in the Factorial Electrolyte System Technology (FEST®), which utilizes a quasi-solid polymer electrolyte combined with an ultrathin lithium-metal anode and a high-capacity cathode. This technology allows for approximately 80% compatibility with existing lithium-ion production lines, facilitating scalability and integration into current manufacturing processes (source: factorialenergy.com).
Complementary technologies such as Solstice™, a sulfide-based all-solid-state electrolyte, and Gammatron™, an AI-driven battery digital twin software, further enhance their offerings. Solstice™ boasts high thermal stability and zero liquid content, while Gammatron™ accelerates R&D in electrolyte development and battery management systems (source: enertherm-engineering.com).
Projects & Track Record
Factorial Energy has achieved significant milestones in battery development, including a series of prototypes that have progressively increased in capacity and complexity. Notable achievements include the validation of 0.6 Ah Li-metal chemistry in 2017, the introduction of a 40 Ah 30-layer graphite anode prototype in 2021, and the unveiling of a 106 Ah automotive B-sample cell at CES 2023. These advancements demonstrate Factorial's commitment to pushing the boundaries of solid-state battery technology (source: factorialenergy.com).
Recent Developments
In October 2023, Factorial Energy inaugurated its $50 million manufacturing facility in Methuen, Massachusetts, which is set to be the largest solid-state battery production line in the U.S. with a capacity of 200 MWh. This facility is expected to significantly enhance their production capabilities and support the scaling of automotive applications (source: waveep.com).
In 2024, the company shipped 106 Ah B-samples to various OEMs and unveiled their Solstice™ technology after a period of stealth development. Additionally, they have been recognized as a leading player in the deep tech sector, ranking #25 among the Top 100 Private Deep Tech Companies (source: factorialenergy.com).
Working There
Factorial Energy is actively hiring across various departments including R&D, manufacturing, sales, and engineering, particularly in response to their recent expansion efforts. The Methuen facility is expected to create over 150 jobs, contributing to the local economy while supporting the company's growth in solid-state battery production. The company culture emphasizes speed and innovation, with a focus on ethical governance and sustainability goals, including a commitment to carbon-neutral production by mid-2030 (source: factorialenergy.com).
Last updated on Feb 23, 2026 | Report an issue
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 a Senior HR Manager, Korea to join our team in our Cheonan, South Korea location. This person will be responsible for owning all aspects of HR in Korea, running local HR operations end-to-end while serving as a strategic HR partner to local leadership and HQ. They will help leaders make sound people decisions, drive organizational effectiveness, and ensure alignment with Factorial's global HR strategy, policies, and culture. The ideal candidate will be a hands-on operator first and a strategic business partner second, with the judgment to build a high-performing organization that supports business growth.
In this role, you will
- Own and run local HR operations, including employee lifecycle management, payroll (including the four major social insurances and year-end tax settlement), statutory compliance, employee relations, immigration, contingent workforce and contractor classification compliance (Dispatch Workers Act), and vendor management.
- Ensure compliance with Korean labor law - including mandatory statutory trainings, Rules of Employment maintenance, and labor-management council operations - and maintain effective partnerships with external payroll providers, labor counsel, and other HR vendors.
- Handle sensitive employee and organizational matters with strict confidentiality and discretion, supporting the compliance obligations of a US-listed public company.
- Partner with business leaders to support organizational growth, workforce planning, talent strategy, and organizational effectiveness.
- Lead Korea recruiting and hiring outcomes by partnering with hiring managers and managing recruiting resources, including agencies, contractors, and RPO partners.
- Coach leaders on hiring, performance management, employee relations, and people leadership while ensuring alignment with Factorial's hiring philosophy and HR policies.
- Drive employee engagement, leadership development, and initiatives that strengthen organizational capability and company culture.
- Partner closely with HQ HR to implement global programs while providing local business insights and ensuring consistent execution across the organization.
- Build scalable HR processes that support the continued growth of the Korea organization.
We are looking for people who
- Bachelor's degree in Human Resources, Business, Organizational Development, or a related field.
- 8+ years of progressive HR experience, preferably in a multinational, manufacturing, engineering, or high-growth environment.
- Demonstrated experience partnering with business leaders on organizational design, workforce planning, talent strategy, and people decisions.
- Proven ability to influence leaders, coach managers, and drive organizational effectiveness.
- Experience leading recruiting strategy and managing multiple recruiting channels and external partners.
- Strong knowledge of Korean labor law, HR operations, payroll, and statutory compliance.
- Experience with HRIS/HCM platforms and applicant tracking systems (e.g., Greenhouse) preferred.
- Experience working in a multinational or publicly listed company preferred.
- Native or bilingual Korean and fluent English required.
- Demonstrated ability to operate with autonomy, sound judgment, and strong ownership in an ambiguous and rapidly changing environment.
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 ([email protected])
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About the role
August 11, 2026
August 11, 2026
Full time
On-site
Company
- Cheonan, South Korea
8+ years of progressive HR experience
UTC+09:00