Mechanical Engineer II, Advanced Product Development
Form Energy
Somerville, MA · $97k–$128k a year · Posted September 12, 2026
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Where Somerville, MA ranks
Where Somerville, MA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Best cities for entry-level jobs that want AI skills in the Northeast29% · of 48
- #1Best cities for entry-level jobs that want AI skills in New England29% · of 20
- #1Cities that post pay most often66% · of 100
- #2Best cities for life sciences and biotech pay after cost of living$212k · of 10
- #2Best cities for AI-skill jobs in New England19% · of 28
- #3Cities with the most hybrid jobs in New England23% · of 27
Rankings about product jobs
- Best cities for product jobs #1 New York (738 openings)
- Best cities for product pay after cost of living #1 Santa Clara ($224k)
- Most requested AI skills in product jobs #1 AI product management (17.9%)
- AI tools named most often in product jobs #1 Claude (3.2%)
- Employers with the most product jobs #1 Amazon (356 roles)
How AI is used in this kind of work
AI use among mechanical engineers is little observed so far. Measured exposure for mechanical engineers: 8% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
About the job
Are you ready to build America’s energy future? Form Energy is an American manufacturing and energy technology company. We’re revolutionizing energy storage with cost-effective, multi-day technology designed to keep the electric grid secure and reliable, even during extended periods of stress. By strengthening the electric system and reimagining what’s possible, we’re giving clean energy a whole new form!
In recent years, Form Energy has earned a number of accolades, including being named by TIME as a “Best Invention”, MIT Technology Review as a “Top Climate Tech Company To Watch”, and Fast Company as “One of the Next Big Things In Tech”. We are making rapid progress on our mission of delivering energy storage for a better world, and our team is growing just as rapidly to meet demand. We have signed contracts with leading electric utilities across the United States and production of our iron-air batteries is underway at our first high-volume manufacturing facility in West Virginia.
Working for Form Energy is more than just a job, it’s a chance to be part of something extraordinary. And now - right as we significantly scale up battery manufacturing - might be the most exciting moment in the company’s history to join. We are assembling a team of highly talented and driven individuals across the country. Driven by our core values of humanity, excellence, and creativity, our team is determined to deliver on our mission and transform the energy landscape for the better.
Feeling energized to make a meaningful impact on the world? Then keep reading - you’ve come to the right place.
ROLE DESCRIPTION
Form's Advanced Product Development team is responsible for architecting and designing the next generation of our iron-air battery system — the cell, module, pack, and the support systems that keep them running reliably for decades in the field. We work ahead of our production programs, translating breakthrough electrochemistry and system requirements into mechanical designs that can scale to high-volume manufacturing.
We're hiring a Mechanical Engineer II to support the design, build and test hardware for our next generation of iron-air batteries. As part of our Advanced Product Development team, you will have a hands-on role in designing next-generation system-level designs. You will also have the opportunity to design parts for volume manufacturing. Your work will rely on a broad range of engineering disciplines, including heat transfer, fluid dynamics and mechanics. You will integrate tightly with a team of experienced engineers to write and execute verification test plans and iterate on designs with data-driven analysis. You’ll be a part of a large cross-functional team bringing Energy Storage Systems from concept to release to mass manufacturing. This is an exciting opportunity to deliver our sustainable multi-day energy storage solution to the grid!
Relocation assistance is available.
WHAT YOU'LL DO:
- Lead hands-on prototyping and verification testing of subsystem designs.
- Drive instrumentation, data collection and data analysis for system-level validation builds.
- Own design of components and assemblies for volume manufacturing.
- Run and analyze trials to inform specs and future design direction.
- Execute ambitious product development processes on tight timelines.
WHAT YOU'LL BRING:
- Degree in Mechanical Engineering or related field; Bachelor's with 1+ years experience in mechanical design, or Master's with research or professional engineering experience.
- Experienced using CAD to design parts and assemblies.
- Exposure to writing, executing and analyzing test plans to make data-driven decisions.
- Experience with prototyping techniques and working in a lab environment.
- Strong heat transfer, fluid dynamics and mechanics fundamentals.
#LI-Onsite
Humanity is a cornerstone of Form Energy’s culture, and we make sure our compensation and benefits reflect that. Form Energy offers competitive salaries, stock options, and a holistic benefits package to ensure all employees have what they need to thrive while working here.
When it comes to you and your family’s health, we cover 100% of medical, dental, and vision premiums for full-time employees - and 80% of healthcare premiums for dependents. This starts from day one. We also offer at least 12 weeks of paid leave for new parents (up to 20 weeks for birthing parents), and generous vacation policies to give employees time to recharge when needed.
To build America’s energy future, we need everyone at the table. We are proud to be an equal opportunity employer, and encourage candidates from all backgrounds to apply to our open jobs.
If you may require reasonable accommodations to participate in our interview process, please contact accommodations@formenergy.com. Requests for accommodations will be treated with discretion.
Form Energy is committed to maintaining the privacy of our applicants. Please be aware that we will never solicit sensitive personal information such as Social Security numbers or bank account details during the recruiting or hiring process.