Lead Production Welder

Commonwealth Fusion Systems

190

Devens, MA, United States

Posted on: 2025-06-16

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 Lead Production Welder

The Lead Production Welder at Commonwealth Fusion Systems is responsible for leading a highly skilled and efficient team welding the world’s strongest high temperature superconducting magnets and assemblies for integration into CFS fusion devices. The role is responsible for continuously improving production welding tasks, maintaining schedules with resourcing, and assuring quality requirements are met per documentation. The welding team is a hands-on build team working with mechanical, electrical, magnetic, cryogenic, pressure, vacuum, and pneumatic systems.

#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:

Support production welding operations including coordinating welding operations, maintaining welder continuity, supporting first encounters, planning and execution of weld repairs, and process improvement projects

Advise and monitor welder safety

Provide weldability/manufacturability feedback to engineers for drawings, weld geometries, and tool access

Train & certify welders to meet Production needs, provide technical guidance, and maintain records of welder certification

Review and prepare welding instructions to ensure welders are familiar with the requirements and equipped to meet them

Define and standardize welding best practices across CFS Production

Implement welder feedback into welding procedures and work instructions

Standardize and manage weld consumables, production weld equipment

What we’re looking for:

High school Diploma

5+ years experience as a welder and/or welding operator in a manufacturing environment or on large structural systems and tooling

Understanding of weld drawings, symbols, terminology, and specifications

Familiarity with welding standards, including ASME BPVC Sec IX, ASME B31.1, AWS D1.1

Knowledge of safety requirements and practices, particularly as they relate to joining applications

Familiarity with welding, brazing, cutting equipment, theory, and application

Familiarity with Welding Inspection techniques, including visual inspection (VT), X-ray inspection (RT), dye penetrant (PT), ultrasonic inspection (UT), and magnetic particle testing (MT)

Familiarity working with stainless steel, aluminum, copper, refractory and nickel based alloys

Knowledge of Base Material and Welding Materials, including a basic understanding of welding metallurgy, weldability characteristics of base and filler metals

Proficiency with GMAW, GTAW, SMAW, FCAW processes and semi-automatic, mechanized and robotic equipment

Ability to obtain professional certifications such as AWS Certified Welding Inspector

Bonus points for:

Knowledge of material testing methods and material specifications

Experience with LBW, OTW, brazing, soldering, and automated welding processes

Previous experience in a welding supervisory or management position

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

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

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