Vacuum Systems Assembly Engineer

Commonwealth Fusion Systems

190

Devens, MA, United States

Posted on: 2025-06-02

Category: renewables

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Employment type:

Full time

Experience required:

Intermediate

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 Vacuum Systems Assembly Engineer

CFS is looking for an individual with electromechanical hands-on skills to be onboarded as Vacuum Systems Assembly Engineer for SPARC, the cutting-edge fusion energy plant currently under construction in Devens, MA. The vacuum pumping systems of SPARC are vital components to the plant and are in the last design phase. Their installation and commissioning shall commence in early 2024 and it will extend up to mid-2026, when SPARC will transition to operation after producing the 1st plasma experiment.

The Vacuum Systems Assembly Engineer is an exciting role, with an initial responsibility for the installation and commissioning of the SPARC Vacuum Pumping Systems. With SPARC moving into plasma operations, the Vacuum Systems Assembly Engineer shall ensure SPARC functional availability by executing planned maintenance as well repairs of vacuum equipment. Responsibilities include close cooperation with Operations, Plant Maintenance, Quality and other departments to ensure that goals and objectives are met.

#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 installation, commissioning and set-up of rough vacuum, high vacuum (HV) and ultra-high vacuum (UHV) equipment, instrumentation and piping

Support mechanical design and integration of vacuum piping and supports through use of NX CAD, Ansys and structural calculations

Work alongside the Tokamak Operations and Physics Teams to complete the integrated commissioning plan

Helium leak checking of vacuum systems (training will be available)

Assist other Vacuum Systems Engineers with testing necessary to the development of customized vacuum equipment

Assist in the development of maintenance procedures for vacuum pumps and instrumentations

Maintain accurate records of all vacuum equipment maintenance while suggesting corrective actions to improve vacuum equipment availability

Develop and maintain spare part stock and consumables

What we're looking for:

Associate’s degree in a relevant engineering or science field and/or a minimum of 5 years’ experience in a variety of skills such as but not limited to mechanical and electrical assembly, plumbing, soldering and wiring. Experience as pipe fitter for chemical/semiconductor vacuum equipment/HVAC company is appreciated.

Commitment to safety and quality

Ability to work independently and in a team environment

Bonus points for:

Knowledge and operation of helium leak detector, vacuum pumps and vacuum pressure gauges, though training will be provided

Must-have requirements:

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

Work in a facility that contains industrial hazards including heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, cryogenics, confined spaces, lasers, microwaves, ionizing radiation, and vacuum/pressure systems

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