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Form Energy

Iron-air multi-day energy storage systems

Staff Mechanical Engineer - Advanced Product Development

Design Engineering +1Confirmed live in the last 24 hours
Full-timeSomerville, MA, USA

About the Job

Requirements

  • A degree in Mechanical Engineering or a related field; a Bachelor's degree with 7–10 years, or an advanced degree with equivalent experience, in mechanical design of complex electromechanical or fluid/thermal systems.
  • Demonstrated ownership of subsystem-level design, including trade-offs across thermal, fluid, and structural interfaces.
  • Strong first-principles grounding in thermo-fluid systems, with experience translating analytical models into design decisions.
  • Experience taking components or subsystems from early-stage concept through manufacturing.
  • Growing technical leadership, with comfort guiding junior engineers or leading focused workstreams, and potentially coordinating or leading other engineers.
  • Comfort operating with ambiguity in an early-stage environment ramping toward production, with urgency to meet demanding schedule targets.
  • Strong ownership mentality and willingness to work hands-on with hardware when necessary.

Responsibilities

  • Own the mechanical design of one or more subsystems (thermal, fluid handling, or structural) within next-generation energy storage systems, from concept through system verification.
  • Contribute to high-leverage trade-offs across subsystem interfaces—performance, cost, manufacturability, and reliability—exercising judgment with guidance from senior/principal engineers on the most ambiguous calls.
  • Build first-principles analytical models that inform subsystem design decisions.
  • Plan and execute first-of-a-kind prototype builds and test campaigns to validate subsystem-level design choices.
  • Partner with manufacturing engineering on design-for-manufacturing and design-for-cost for owned components and assemblies.
  • Represent mechanical engineering in cross-functional design reviews with electrochemistry, controls, program management, and compliance.
  • Engage with vendors on sourcing and early-stage development of novel components.
  • Drive workflows using AI to increase team speed and efficiency.
  • Champion safety, especially when introducing new lab processes, prototype hardware, or test methods.

Desired Qualifications

  • Experience in energy storage, batteries, or another safety-critical, highly regulated hardware industry.

About the Company

Form Energy

Iron-air multi-day energy storage systems

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, MA
Founded
2017

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