Combination Welder

Number of employees

1050

Devens, MA, United States

Posted on: 2025-06-10

Category: renewables

Ready to make this your next chapter?

Let Commonwealth Fusion Systems know you found them on WorkInGreen. It helps more companies post climate jobs here.

Expired

Employment type:

Full time

Experience required:

Intermediate

Salary

Salary not provided

About the company:

Commonwealth Fusion Systems (CFS) is on a mission to deliver clean fusion energy to the planet fast enough to matter for humanity’s biggest challenges.

It’s urgent. The gap between the energy we need and the energy we have is widening every day. Fusion is a critical part of the energy transition away from fossil fuels, a new chapter for the world’s energy supply.

We’re committing to delivering fusion power plants and a full-fledged fusion energy industry as we’ve delivered on other promises. Like the world’s strongest high-temperature superconducting magnet, the game-changing technology that’s making commercial fusion energy a reality.

We’ve raised over $2 billion in capital — more than any other fusion energy company — and attracted top talent to design, build, and deliver commercial  fusion power plants. And we’re working with policymakers and suppliers to make fusion energy available globally.

As we push toward the fusion-energy future, we’ll keep setting and meeting milestones, sharing and validating our progress, and encouraging others to do the same.

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 Combination Welder 

The Materials Department at CFS supports design engineers, supply chain, and manufacturing by selecting materials and processes, unambiguously defining materials and processes, validating and measuring those materials and their properties, and conducting R&D to develop new materials and processes to enable fusion power deployment. The work is undertaken in support of delivering SPARC, the net energy tokamak under construction in Devens, MA, and ultimately in designing the ARC fusion power plant. These devices pose unique materials challenges including neutron fluxes produced by deuterium-tritium fusion, high heat loads, molten salt coolant systems, complex component topologies, high magnetic fields, and high cryogenic mechanical loads. To support this mission, the CFS Materials Department is seeking a combination welder to support the welding engineering team. This team supports welding process development for both in- and out-of-house superconducting magnet and tokamak assemblies. The welding engineering team works collaboratively across disciplines to develop weld geometry and techniques, weld specifications, and inspection methods needed for CFS components.

#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:

  • Always follow safety procedures
  • Develop advanced welding and joining processes for multiple manual, semi-automatic, mechanized, and robotic processes including but not limited to; GMAW, GTAW, FCAW, LBW, EBW, SAW, SW, Torch Brazing, Induction Brazing and hybrid processes
  • Conduct welding and joining qualification test on stainless steel, aluminum, copper, refractory and nickel based alloys
  • Set up and unbox welding equipment in a laboratory and production setting
  • Assist in the training and knowledge transfer of welding processes from R&D to production operations
  • Perform destructive and metallographic testing on welded samples for evaluation and analysis
  • Provide manufacturability feedback to engineers for weld geometries and tool access
  • Troubleshoot and resolve welding discrepancies with a focus on continuous improvement
  • What we’re looking for:

  • Highschool Diploma
  • 5+ years experience as a welder and/or welding operator on large structural systems and tooling
  • Experience with fabrication of large metallic structures and advanced processes related to welding
  • Proficiency with GMAW, GTAW, FCAW processes and semi-automatic, mechanized and robotic equipment
  • Experience with laboratory methods for destructive weld and material analysis
  • Aptitude for picking up and learning advanced welding processes and equipment quickly
  • Excellent attention to detail
  • Knowledge of various forms of welding equipment and procedures
  • The capacity to work unsupervised
  • A detailed understanding of mathematical and numerical data and calculations
  • Project and time management
  • Knowledge of safety practices as they pertain to welding, cutting, and joining processes
  • Strong problem solving skills, ability to approach new problems with creativity
  • Ability to work effectively in a multidisciplinary team of engineers, scientists, technical staff, and others
  • Bonus points for:

  • AS in welding or fabrication technology
  • Proficiency in LBW, EBW, SAW, SW, Torch Brazing, Induction Brazing and hybrid processes
  • Proficiency welding stainless steels, copper, and aluminum alloys
  • Must-have Requirements:

  • Ability to lift up to 50 lbs regularly
  • Perform activities such as stooping, typing, standing, and 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 travel occasionally or do required nights/weekends/on-call
  • Not quite the right fit? Keep looking.

    More climate roles that match your skills and values.

    View all jobs
    Form Energy logo
    United States
    Number of employees

    840

    Dollar sign

    $147,970.00 - $183,600.00

    Full time
    Renewables
    Form Energy logo
    United States
    Number of employees

    840

    Dollar sign

    $170,250.00 - $222,270.00

    Full time
    Renewables
    Commonwealth Fusion Systems logo
    United States
    Form Energy logo
    United States
    Number of employees

    840

    Dollar sign

    $147,970.00 - $183,600.00

    Full time
    Renewables
    Fourth Power logo
    United States

    1283 Renewables jobs at Commonwealth Fusion Systems

    Commonwealth Fusion Systems is hiring Shift Operations Engineer - SPARC,Welder - Contract,Production Technician Contractor, and more.

    View all jobs at Commonwealth Fusion Systems