Accounting Manager

Factorial Energy is an American solid-state battery company headquartered in Billerica, Massachusetts, focused on developing high-performance energy storage solutions for electric mobility, defense, and AI-driven robotics applications. The company designs and manufactures solid-state batteries that overcome the fundamental limitations of conventional lithium-ion technology, including energy density constraints, weight penalties, and safety concerns associated with liquid electrolytes. Factorial's batteries have demonstrated real-world capability, including powering a vehicle on a drive exceeding 1,200 kilometers on a single charge using solid-state cells. Factorial's mission centers on advancing American technology leadership, economic resilience, and domestic industrialization of next-generation battery technology. The company positions its work as critical to U.S. national security, energy independence, and global competitiveness across the automotive, defense, and robotics sectors. With over 10 years of research and development and more than 150 patents and patent applications, Factorial has built a deep intellectual property portfolio and established partnerships with four top-tier automotive manufacturers, including Stellantis. What distinguishes Factorial is its capital-efficient manufacturing approach: its technology is approximately 80 percent drop-in compatible with existing lithium-ion production infrastructure, significantly reducing the cost and disruption required for partners to transition to solid-state production. The company also employs a proprietary dry-coating process to further enhance manufacturing efficiency and reduce costs. Recent milestones include securing its first commercial aerospace battery order and completing successful flight tests with partner Tulip.

Who We Are

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 an Accounting Manager to join our team at our Cheonan, South Korea site. This person will be responsible for managing the general ledger and reviewing journal entries, owning inventory and cost accounting for our manufacturing operations, and reviewing and approving accounts payable transactions, among other general operational accounting tasks. The ideal candidate will bring strong manufacturing cost accounting experience, solid knowledge of both US GAAP and Korean statutory accounting requirements, and the ability to partner closely with our global finance and operations teams.

 

In this role, you will:

• Manage the general ledger for the South Korea entity, ensuring transactions are recorded accurately and on time in accordance with US GAAP and Korean statutory requirements.
• Review and approve journal entries prepared by the local accounting team, ensuring proper support, account coding, and adherence to close deadlines.
• Own inventory and cost accounting for the manufacturing operation, cost allocations, and analysis of purchase price, labor, and overhead.
• Oversee inventory valuation, cycle counts, and physical inventory processes in partnership with manufacturing and supply chain teams.
• Review and approve accounts payable transactions, ensuring proper authorization, coding, and compliance with company policy and local regulations.
• Lead the monthly, quarterly, and annual close process for the South Korea entity, including account reconciliations and supporting schedules.
• Coordinate with external auditors, tax advisors, and government authorities on statutory audits, tax filings, and regulatory compliance in South Korea.
• Prepare local statutory financial statements and support consolidation with the corporate US accounting team.
• Design, document, and maintain internal controls over the general ledger, inventory, and accounts payable processes.
• Identify and drive process improvements and system enhancements (e.g., ERP) to support accounting operations as the site scales.
• Mentor and develop local accounting team members.

 

We are looking for people who:

• Bachelor's degree in Accounting, Finance, or a related field; Korean CPA, US CPA, or equivalent professional certification preferred.
• 7+ years of progressive accounting experience, including hands-on inventory and cost accounting in a manufacturing environment.
• Strong knowledge of US GAAP and Korean GAAP/K-IFRS, with experience preparing or supporting statutory financial statements in South Korea
• Demonstrated experience managing month-end close, general l.edger, and accounts payable processes.
• Experience with ERP systems (e.g., NetSuite, SAP) and advanced Excel skills.
• Business-level fluency in Korean and English, with the ability to communicate effectively with the US headquarters finance team.
• Strong attention to detail, organizational skills, and the ability to manage multiple priorities and deadlines in a fast-paced, growing manufacturing environment.
• Experience in a startup or high-growth manufacturing company is a plus, particularly in battery, automotive, or advanced materials industries.

 

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])