Factorial Energy

Testing Technician

Join Factorial Energy in Woburn, Massachusetts as a Testing Technician. This role involves testing battery cell performance and safety, maintaining equipment, and analyzing data. Benefit from medical insurance, paid time off, and a 401(k) with employer match while advancing solid-state battery technology.
Factorial Energy
Factorial Energy
Woburn, Massachusetts, United States On-site Full time USD 27–32 per hour UTC-05:00

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).


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 Testing Technician to join our team in our Woburn,MA location. This person will be responsible for testing of cell performance/safety/reliability and maintenance of equipment. The ideal candidate will have knowledge of electrical systems and understand the mechanisms of how each piece of equipment works, e.g., monitoring cell voltage and cell/ambient temperature, creating and understanding charge/discharge programs, and setting up on-site interlocks with manual wiring.

In this role, you will

  • Execute tests according to each test specification
  • Set up safety tests on the equipment
  • Connect and disconnect test cells to each piece of equipment, understanding how each wire and sensor works
  • Start test programs on each software platform
  • Identify potential issues with the setup and make adjustments in advance to prevent errors
  • Organize data efficiently using shortcuts and scripting; Python skills are a plus
  • Properly dispose of tested cells and clean up equipment after testing

We are looking for people who

  • Hold a Bachelor's degree in Electrical Engineering, Mechanical Engineering, or Chemistry, with a Master's degree as a plus
  • Enjoy hands-on work, including understanding equipment structure and function, and comparing real-world operation against manuals and system documentation
  • Have experience analyzing test data, creating graphs, and preparing presentations
  • Have fluency in English (written and verbal)

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

Salary Range: $27-$32/hour + Equity

Work Location:

19 Presidential Way, Woburn, MA 01801

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])

Apply now

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About the role

May 26, 2026

Full time

Company

May 26, 2026

On-site

USD 27–32 per hour

Energy Storage , EV Charging Infrastructure

Factorial Energy

factorialenergy.com

  •  Woburn, Massachusetts, United States

Bachelor's degree required, Master's degree preferred, with hands-on experience in testing and data analysis.

UTC-05:00