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Factorial Energy

Staff Accountant

Factorial Energy is hiring a Staff Accountant in Billerica, Massachusetts. Support daily accounting operations, ensure compliance with GAAP, and assist with financial reporting. Enjoy competitive benefits including medical insurance, generous paid time off, and a 401(k) plan with employer matching.

Factorial Energy

Company Overview

Factorial Energy

Woburn, Massachusetts, United States

2013

Approximately 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).

Contact


Last updated on 2025-12-27 | 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.

Factorial Energy is seeking a Staff Accountant to join our team in our Billerica location. This person is responsible for supporting the daily operations of the accounting department, ensuring accurate financial recordkeeping and compliance with internal policies and GAAP standards. This role plays a key part in maintaining the integrity of financial data and assisting with financial reporting. The ideal candidate is detail-oriented, analytical, and possesses strong communication skills. The role is part of a fast-paced team that focuses on providing accurate financial information for internal and external use in a timely manner.

In this role, you will

  • Record and reconcile financial transactions, including accounts payable, accounts receivable, and general ledger entries.
  • Assist with month-end and year-end closing processes.
  • Prepare journal entries and maintain supporting documentation.
  • Perform bank and account reconciliations.
  • Support the preparation of financial statements and internal reports.
  • Assist with audits by providing requested documentation and explanations.
  • Help maintain fixed asset records and depreciation schedules.
  • Participate in process improvement initiatives to enhance efficiency and accuracy.

We are looking for people who

  • Bachelor's degree in Accounting, Finance, or related field
  • 1-3 years of accounting experience preferred
  • Solid understanding of basic accounting principles and practices
  • Strong verbal and written communication skills
  • Detail oriented
  • Ability to manage multiple tasks and meet deadlines.
  • Experience with ERP systems; NetSuite is a plus

Some of our competitive benefits include

  • Medical, dental, and vision insurance
  • Generous paid time off
  • 401(k) plan that includes employer matching funds
  • Education assistance plan
  • Life insurance and disability coverage

Work Location

805 Middlesex Turnpike, Billerica, MA 01821

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

October 30, 2025

Full Time

Company

December 30, 2025

On-site

Factorial Energy

factorialenergy.com

  •  Billerica, Massachusetts, United States

1-3 years of accounting experience preferred

UTC-05:00

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