Form Energy

Form Energy

Iron-air multi-day energy storage systems

Manager – Materials Engineering

Full-Time
$170.2k - $212.8k/yr

+ Stock options

Mid
Bachelor's
Somerville, MA, USA
Remote

Relocation assistance is available. Domestic travel up to 15% is required.

About the job

Requirements
  • Demonstrated success managing, mentoring, or growing the careers of technical talent.
  • Hands-on experience translating lab-scale material properties into product specifications, ideally through a Design for Manufacturing transition from research and development to high-volume manufacturing.
  • A degree in materials science, chemical engineering, chemistry, mechanical engineering, or a related discipline.
  • Comfort balancing tactical, day-to-day engineering execution with longer-term technical and team strategy.
  • Familiarity with Design of Experiments and analytical tools such as JMP or Minitab to guide specification decisions.
  • Working knowledge of Failure Mode and Effects Analysis and Root Cause Analysis methods to mitigate technical and safety risk.
  • Strong verbal and written communication skills to build consensus and influence cross-functional stakeholders.
  • Willingness to travel domestically up to 15% of the time to support project execution across facilities.
  • Intellectual curiosity, pragmatic problem-solving instincts, and the capacity to thrive in a fast-paced organization.
Responsibilities
  • Build, coach, and grow a team of 4+ materials engineers by setting development goals and creating a strong bench of future technical leaders.
  • Own the translation of lab-scale material research into validated, production-ready specifications that satisfy performance, cost, and manufacturability requirements.
  • Align daily engineering tasking with master project milestones while balancing hands-on technical guidance with longer-term team development.
  • Partner cross-functionally with advanced manufacturing and process engineering to streamline the transition from development to high-volume production.
  • Drive vendor management and technical specification decisions for raw materials using component performance data.
  • Prioritize safety across the product lifecycle by enforcing hazard mitigations, Failure Mode and Effects Analysis, and Root Cause Analysis practices within the team.
  • Architect structured technical updates for executive leadership by translating complex material science into decision-ready options.

About the company

Form Energy develops and sells energy storage systems designed for long-duration use in the electric grid. Its main product is an iron-air battery that can store electricity for up to about 100 hours, offering a cost-effective alternative to traditional power plants and enabling a fully renewable grid. The system works by storing energy chemically in iron and air, allowing electricity to be released when needed over multi-day stretches, with a focus on scalable manufacturing and system integration to meet utility and municipal needs. The company differentiates itself by pursuing low-cost, multi-day storage on a large scale, leveraging iron as a plentiful material to deliver affordable, reliable energy storage compared to conventional approaches. Its goal is to support deep decarbonization of the electric system by providing reliable, year-round renewable power through affordable energy storage and deployment alongside grid infrastructure.

Company Size

501-1,000

Company Stage

Debt Financing

Total Funding

$2.6B

Headquarters

Somerville, Massachusetts

Founded

2017

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Simplify's Take

What believers are saying

  • Form raised $750 million in August 2026, lifting total equity above $2 billion.
  • Backlog jumped from 20 GWh to 80 GWh, including Xcel, Crusoe, and Ireland.
  • DOE funding and Maine support back Lincoln's first commercial site with nearly $150 million.

What critics are saying

  • Axios pegged the Series G at a $1.75 billion pre-money valuation, down from $3 billion.
  • Xcel's Minnesota project still needs Public Utilities Commission approval before revenue starts.
  • Form's first commercial systems operate in 2026; a performance miss kills financing and orders.

What makes Form Energy unique

  • Form sells 100-hour iron-air batteries, not four-hour lithium systems.
  • Its Minnesota Google-Xcel deal spans 30 GWh, the largest announced battery project.
  • Weirton Form Factory 1 pairs manufacturing with utility contracts from one platform.

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Benefits

100% of medical, dental, & vision premiums

HSA & Flexible FSA

Generous PTO

Employee resource program

Parental leave

Commuter benefits account

Stock options

Equity

401k

Profession development budget

Life & disability insurance

Growth & Insights and Company News

Headcount

6 month growth

↓ -1%

1 year growth

↓ -2%

2 year growth

↑ 3%
Benzinga
Sep 21st, 2026
Form Energy closes $270M credit facility to scale iron-air battery production

Form Energy has closed a $270 million credit facility to support its energy storage technology development. The facility comprises a revolving credit facility and a tax credit advance facility linked to Section 45X Advanced Manufacturing Production Credit. An accordion feature allows the facility to expand to $1 billion. Barclays served as sole structuring bank, with Citi, Jefferies, JPMorgan Chase, RBC Capital Markets, Societe Generale, Stifel, and Wells Fargo participating in the lending syndicate. The financing follows Form Energy's $750 million Series G funding round in August, bringing total equity raised to over $2 billion. Proceeds will fund manufacturing scale-up and working capital as the company produces iron-air battery systems at its Weirton, West Virginia facility.

AMCH
Sep 8th, 2026
Sequoia doubled its Form Energy check from $50 million to $100 million.

Sequoia doubled its Form Energy check from $50 million to $100 million. Sequoia disclosed the size of its Series G investment in Form Energy: $100 million. Fund partners David Kahn and Isaiah Boone wrote that they initially offered $50 million, but doubled the amount after founder Mateo Yaramillo's presentation to the partnership. The round had already closed by that point, and the fund had to convince the company to let them in. Sequoia describes its bet as an investment in the energy infrastructure for AI. Scaling models is constrained by the capacity of the US grid, and its restructuring, according to the fund, has moved from the "nice to have" category to "essential." Sequoia measures the market for Form's iron-air batteries in terawatts. The company's business has adapted to this thesis. Form received its first major order from a hyperscaler - 30 GWh for a Google data center through Xcel Energy. The total backlog of contracted supplies has grown from approximately 20 to 80 GWh. The West Virginia plant is located on the site of a shuttered steel mill and employed more than 400 people. The company did not disclose the price of the round. According to Latitude Media, the Series G closed at a pre-money valuation of $1.75 billion, compared to a pre-money valuation of $3 billion in October 2024. Sequoia entered at that very price and doubled its own valuation.

Cambridge Day
Aug 31st, 2026
Five Cambridge and Somerville climate tech companies receive state tax incentive.

Five Cambridge and Somerville climate tech companies receive state tax incentive. The companies will be able to put this money toward expansion through advancing research and projects, hiring more employees and offering stipends Somerville's Form Energy received the majority of a $6 million tax incentive for job creation granted to five climate tech innovation companies in Cambridge and Somerville. Form, which produces high-capacity batteries used for storing renewable energy at utility scale, earlier this year was identified as the recipient of a billion-dollar contract for energy storage from Google, and recently received $750 million in venture capital to help expand its battery factory in West Virginia. Form received $5.6 million in credits from the Massachusetts Clean Energy Center, which gave $27.2 million in tax incentives to 18 companies across the state to create more jobs. In addition to Form, four other local companies received grants. Pascal Technologies and Mantel Capture in Cambridge as well as Eden Geopower in Somerville received $100,000 in tax credits. Somerville's Vertical Semiconductor received $120,000. Some recipients also receive incentives for capital investment, specifically for leasing or buying facility space. MassCEC selected companies with a clear business plan, evidence of continued revenue gains, and were creating technology that would hinder the impacts of climate change and emissions throughout the world," said Mike Condon, the director of economic growth and partnership at MassCEC, in an interview with Cambridge Day. Condon said MassCEC's grant program, modeled after the Mass Life Sciences Center's program, is a way to help grow and retain climatetech companies in Massachusetts. Form Energy. The Somerville-based company Form Energy produces iron-air batteries designed to deliver electricity for 100 hours to create a reliable electric grid year-round. The $5.6 million incentive allowed Form to hire new employees, bringing the company's employee count to 240. Form was originally developed at MIT before it was further developed at the Somerville climatetech incubator Greentown Labs as well as the Cambridge incubator The Engine. Eden Geopower. Eden Geopower, located in Somerville, developed a "first-of-its-kind" electric reservoir stimulation technology, which uses electric pulse drilling to increase the recovery of natural resources in the ground. Overall, the technology aims "to extract natural resources out of the ground, whether its critical minerals, geothermal energy, geologic hydrogen," said Desi Hambrock, Eden Geopower Chief of Staff. The $100,000 tax incentive allows Eden Geopower "to execute our goals more quickly" by hiring more employees, Hambrock said. Overall, Eden's goal is to develop and generate "energy and resources in a way that is very low cost, but at the same time, has huge environmental impact," as is the goal of all climatetech companies, Hambrock said. Mantel Capture. Mantel Capture in Cambridge created a carbon capture system that uses molten borate salt to capture greenhouse gases in industrial boilers, kilns, and furnaces before they enter the atmosphere. The MassCEC incentive will be "super helpful" as Eden builds a bigger team at its facility at 750 Main Street in Cambridge, said Danielle Rapson, the chief operating officer of Mantel Capture. Particularly, tax incentives "really help" Eden give their interns full-time jobs, she said. Vertical Semiconductor. Located in Somerville, Vertical Semiconductor, which was originally started at MIT, is developing a semiconductor power chip that reduces energy losses in data centers. The power chip, made with vertical gallium nitride, essentially makes power systems "much more efficient," said Cynthia Liao, the co-founder and CEO of Vertical Semiconductor. The power chip reduces energy losses inside a data center by about 80 percent, Liao said. She said right now, 20 to 30 percent of energy in a data center never makes it to the center's computers. Liao is "super excited" about the $120,000 tax incentive because it allows Vertical Semiconductor to create new semiconductor engineering and research and development positions and offer stipends for employees who relocate to Somerville. Pascal Technologies. Pascal Technologies is developing efficient, non-polluting refrigerants that allow HVAC systems to put less strain on the electric grid. More efficient refrigerants are needed because "as the world needs more and more cooling, the amount of super-polluting fluorinated gas refrigerants used in these systems will increase while the extra energy usage will strain our electrical grid," said Adam Slavney, co-founder and CEO of Pascal Technologies. Tax incentives generally allow the Cambridge-based company to "offset the high cost-of-living," Slavney said. The MassCEC incentive specifically allowed Pascal to hire an additional employee, bringing its total employees to 15. A stronger. Please consider making a financial contribution to maintain, expand and improve Cambridge Day. Cambridge Day is now a 501(c)(3) nonprofit and all donations are tax deductible. Please consider a recurring contribution.

Latitude Media
Aug 20th, 2026
What's behind Form Energy's downgraded valuation.

What's behind Form Energy's downgraded valuation. Form raised its Series G at a $1.75-billion pre-money valuation, down from $3 billion in 2024 - but it's isn't necessarily cause for alarm. August 20, 2026 Photo credit: Form Energy Hundred-hour battery maker Form Energy raised a $750 million Series G last week, amid rumors that the company is preparing to go public in 2027. The financing brings Form's total equity raised to more than $2 billion - which is just behind home battery company Base Power, which recently raised a $1 billion Series D. Form's fundamentals, order books, and political tailwinds are all at all-time highs. Its first commercial-scale installation is underway in Minnesota. Manufacturing is scaling up at Form's West Virginia factory, and Biden-era tax credits key for energy storage made it through the Republican budget overhaul last summer. And, despite chaos at the Department of Energy, Form's promised federal funding has stayed on track. (CEO Mateo Jaramillo recently appeared on stage alongside Energy Secretary Chris Wright on a DOE tour focused on energy affordability.) And yet, Form raised its latest round at a $1.75-billion pre-money valuation, according to Axios: a significant downvaluation from the $3-billion pre-money valuation at which the company raised its Series F in October 2024. But the down round isn't necessarily cause for alarm, an investor in the round told Latitude Media on background, who added that it's not a reflection of waning investor faith in iron-air batteries, or a sign that demand for next-gen power solutions to power data centers is being usurped by established solutions. Instead, the raise is ultimately a "lagging indicator" of how tighter private markets and an AI-obsessed capital cycle are affecting even more mature startups. In 2024, there was significantly more capital "swimming around" for clean tech, they said, while today, the capital interested in investing in anything other than artificial intelligence is smaller. And Form, the investor added, isn't considered a direct "AI beneficiary." Ironically, it's Form's versatility that gave investors conviction in the company to start with, they added. "The [total addressable market] for Form's product is just immense...anywhere that you can put a gas peaker you can put a Form battery," they explained. Additionally, Form's "e-peaker" doesn't require building gas pipelines and has lower operating costs than a traditional peaker. But in a world where AI data centers never materialized, Form's pipeline "would have looked roughly as it does, anyways." North American PPA market report: july 2026. Bring clarity to your clean energy strategies, with transparent pricing and unique insights for North American PPA markets, in this updated report from S&P Global Energy. The public markets are already reflecting Form's experience. Fuel cell maker Bloom Energy, for example, which is similarly working to capitalize on the data center power frenzy, has many fundamental data points that indicate its sales prospects are higher today than the beginning of the year, the analyst pointed out. However, while Bloom stocks were trading as high as $350 just a few months ago, they've now dropped to around $200. Emerging, unproven tech solutions may face tougher terms from lenders as the largest data center projects turn to multi-billion dollar debt packages, the investor acknowledged. But that's not the dynamic at play in Form's valuation, partly because Form's first major data center adjacent deal, with Xcel Energy and Google, is really a utility deal, meaning the project will sit in the utility's rate base, backed by Google's payments, rather than relying on project finance. Ultimately, Form is facing an age-old problem for tech companies: "There's a pocket of money that needs to invest in companies at the junction that Form is at, that doesn't currently exist," the investor said. "Twenty years ago, the public markets did that, but companies just don't go public that early as often, and that's why fundraisers have been much more challenging for capex-heavy companies." * Maeve Allsup Maeve Allsup is Latitude Media's founding reporter. She was previously a tech reporter at Morning Brew, where she covered tech policy and regulation, as well as the EV industry. Related Reading Stay ahead of energy's next frontier. Subscribe for free:

River Valley Today
Aug 19th, 2026
Senator Collins visits Lincoln energy storage project with energy secretary Wright.

Senator Collins visits Lincoln energy storage project with energy secretary Wright. U.S. Senator Susan Collins joined U.S. Secretary of Energy Chris Wright and local leaders in Lincoln on Aug. 19 to learn more about Form Energy's plans for a new energy storage facility at the Lincoln Technology Park, located at the site of the former Lincoln Paper & Tissue Mill. The project has received nearly $150 million in federal funding through the Grid Resilience and Innovation Partnerships Program, which was established by the 2021 bipartisan infrastructure law. Collins was part of the group of ten senators who negotiated that law. "Revitalizing Maine's former mill sites is a priority of mine, and this project holds tremendous promise for Lincoln and the surrounding communities," said Senator Collins. "It will not only breathe new life into a vacant former mill site, but also create new jobs and strengthen energy security and grid reliability throughout central Maine. Once completed, the facility, the first of its kind in New England, will be able to provide enough electricity to power approximately 65,000 homes for 100 hours. As Chair of the Senate Appropriations Committee, I am committed to advocating for Maine to remain at the forefront of energy innovation and resilience." Collins secured a total of $7.5 million through her role on the Senate Appropriations Committee for infrastructure improvements and continued redevelopment at Lincoln Technology Park. This includes $3.5 million allocated in fiscal year 2024 and $4 million in fiscal year 2026. Collins draws from a background in a family lumber business with a history of public service; she promotes environmental protection linked to Maine's economy by supporting sustainable practices across tourism, recreation, forestry, fishing and agriculture; she seeks to improve health care access, foster small business development, enhance job opportunities, advance education efforts, strengthen transportation networks across Maine as well as bolster national defense capabilities while assisting seniors; she serves as chair of the Senate Appropriations Committee while holding positions on both Health Education Labor & Pensions Committee as well as Intelligence Committee; she represents Maine securing resources for local operations like shipbuilding & manufacturing; additionally advancing initiatives designed to enhance first responder capabilities, fight domestic terrorism & improve cybersecurity - all according to, the official website.