Mechanical Engineer I

Number of employees

840

Somerville, MA, United States

Posted on: 2025-10-28

Category: renewables

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Employment type:

Full time

Experience required:

Intermediate

Salary

$84,540.00 - $110,400.00

About the company:

Form Energy is an American company driving innovation in energy manufacturing and technology. Our cost-effective, multi-day energy storage technology is designed to ensure a clean, secure, and reliable electric grid, even during prolonged periods of stress.

We are assembling a team of talented and driven individuals to work at our facilities in West Virginia, Pennsylvania, Massachusetts, and California. If you’re eager to make a meaningful impact through your work, while rapidly accelerating your career, take a look at our open roles! 

Learn more and apply here: www.formenergy.com/careers

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

We're seeking a Mechanical Engineer to join our team and play a crucial role in designing, prototyping and building components for our battery cell design! You'll contribute to the design, prototyping, and validation of first-of-a-kind features of our battery electrodes. As a problem solver, you'll creatively tackle mechanical design challenges as we release components for high volume manufacturing and in-house automated assembly. You'll work with the rest of the electrode and cell design team to define verification plans, and craft test vehicles and experiments to verify and validate designs. Comfortable working in a prototype shop environment, your role will involve hands-on fabrication and assembly of prototypes, test fixtures and vehicles. Collecting data, drawing conclusions, and reporting out reliability, performance, and mechanical conclusions will also be a key part of this role. If this sounds like the perfect opportunity for you, apply now!

This is an exciting opportunity to be part of scaling our multi-day energy storage system at Form and contributing to a sustainable future.

What you'll do:

  • Design and prototyping of mechanical components integral to the battery cell, electrodes and electrode stack assembly

  • Hands-on design, fabrication and integration of test vehicles, working with rapid prototyping and machine shop tools

  • Support the installation and integration of test articles into Form’s test equipment, and maintain or troubleshoot these during testing

  • Develop functional requirements and validation plans in close collaboration with other members of the Cell, Systems, and Electrode Engineering teams

  • Release designs consistent with company and team best practices (drawings, tolerance analysis, etc)

  • Demonstrate design functionality through component- or system-level testing, and reporting out conclusions from this testing

What you'll bring:

  • Bachelor’s Degree in Mechanical Engineering or related field with co-op, internship, or some industry experience

  • Proficiency in computer-aided design (CAD), specifically SolidWorks modeling and drafting

  • Experience with a variety of prototyping techniques and working in a machine shop environment

  • Experience with maintaining and troubleshooting test equipment and/or operational mechanical prototypes

  • Familiarity with product verification & validation testing

  • Experience with the design and verification of gas or liquid seals is a plus

  • Experience working with batteries, energy storage, fuel cells, or electrolyzers is a plus

#LI-Onsite

#LI-AB1

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 [email protected]. 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.

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