Senior Mechanical Engineer - TF Structures

Commonwealth Fusion Systems

190

Devens, MA, United States

Posted on: 2025-07-25

Category: renewables

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Employment type:

Full time

Experience required:

Senior

Salary

Salary not provided

About the company:

Commonwealth Fusion Systems (CFS) has the fastest, lowest cost path to commercial fusion energy.

CFS is collaborating with MIT to leverage decades of research combined with new groundbreaking high-temperature superconducting (HTS) magnet technology. HTS magnets will enable compact fusion power plants that can be constructed faster and at lower cost.

The mission is to deploy fusion power plants to meet global decarbonization goals as fast as possible. CFS has assembled a team of leaders in tough tech, fusion science, and manufacturing with a track record of rapid execution. Supported by the world’s leading investors, CFS is uniquely positioned to deliver limitless, clean, fusion power to combat climate change.

If you are interested in joining our team, check out cfs.energy/careers for more information.

About Commonwealth Fusion Systems:

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.

Combining decades of research, top talent and new technologies, we’re designing and building commercially viable fusion power plants. And working with policymakers and suppliers to build the energy industry of the future.

We’re in the best position to make it happen. Since 2018, we’ve raised over $2 billion in capital – more than any other fusion energy company in the U.S.

Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team.

If that’s you and this role fits, we want to hear from you.

Join the power movement as a Senior Mechanical Engineer - TF Structures

As a Mechanical Engineer for the SPARC Toroidal Field (TF) Coil System Structures team, you will be a product owner responsible for the design, production support, and assembly of structural components and insulation in our HTS magnet systems. You will work closely with our Production, Assembly, and Procurement teams to ensure components meet requirements and are delivered on-time. Your responsibilities will also include the development design and analysis documentation, technical specifications, and assembly procedures.

#LI-Onsite

At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we’re eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.

We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.

What you'll do:

Perform structural and thermal calculations, ranging in complexity from first principle hand calculations to FEA

Drive production drawing releases and revisions to meet manufacturing and assembly schedules

Collaborate with internal Quality, Manufacturing, Assembly, Commissioning, and Procurement teams on requirements and documentation

Rapidly design, test, and qualify prototypes

Prepare reports and presentations as requested

Be self-motivated and exhibit excellent problem-solving skills

Strive for simplicity over complexity

What we’re looking for:

Bachelor’s degree in mechanical engineering, aerospace engineering, physics, or another relevant field

6+ years of experience designing structural components in a fast-pace environment

Experience with CAD software (NX preferred) and analysis software (ANSYS Workbench preferred)

Essential Requirements:

Perform activities such as typing, standing, or sitting for extended periods of time

Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, and cryogenics

Willingness to occasionally travel or work required nights/weekends/on-call

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