Commonwealth Fusion Systems

Develops high-temperature superconducting fusion magnets

Mechanical Engineer - Cable Magnets

Design EngineeringConfirmed live in the last 24 hours

Full-timeDevens, MA, USA$107k - $160k /yr

About the Job

Requirements

A bachelor's degree in mechanical engineering, aerospace engineering, or another relevant field is required.
A minimum of 5 years of engineering design and analysis experience is required, including at least 2 years providing engineering support to production hardware by resolving technical issues and implementing design-for-manufacturing or design-for-assembly changes.
Relevant hands-on experience designing parts for high loads and/or extreme environments is required.
Fundamental knowledge of mechanical systems, including static structures and heat transfer, is required.
Familiarity with all steps in the design process is required.
Proficiency in computer-aided design (CAD) is required; NX is preferred, and any CAD software is acceptable.
Finite element analysis (FEA) is required; ANSYS and COMSOL are preferred.
Ability to sit for extended periods is required.
Ability to work in a facility containing industrial hazards, including heat, cold, noise, fumes, strong magnets, lead, high voltage, high current, pressure systems, and cryogenics, is required.
Occasional travel and occasional nights, weekends, or on-call availability are required.

Responsibilities

Own cable-magnet hardware for SPARC, ARC, or other projects, ensuring designs are completed, validated, procured, built, and installed correctly and on time.
Produce new design concepts and iterate on existing concepts using knowledge of physics, structural mechanics, and analysis techniques for metallics and composites.
Coordinate with research and development, analysis, manufacturing, and procurement teams to complete program milestones on time.
Diagnose production- and assembly-line issues, identify a path forward based on knowledge of the hardware, and propose and implement design solutions based on root cause.
Prepare reports, presentations, design documentation, and validation documentation for final cable-magnet systems.
Develop cable-magnet hardware designs from early concepts through delivery, including thermal, structural, and electromagnetic analysis to confirm requirements are met.
Develop design notes, technical specifications, and other documentation needed to manufacture and install cable-magnet hardware and supporting systems.
Support procurement in preparing and executing manufacturing contracts.
Support production and assembly teams through the build and installation of designs.

Desired Qualifications

Preferred experience with NX computer-aided design software.
Preferred experience with ANSYS and COMSOL finite element analysis software.
A demonstrated record of designing mechanical components beyond desktop scale, such as components with power above 1 MW, mass above 1 ton, or force above 1 MN.
Expertise in ASME Y14 geometric dimensioning and tolerancing (GD&T) principles.
Experience in production or heavy-equipment assembly environments.
Design experience with electromagnets, vacuum systems, welding, composite materials, radiation environments, or cryogenic environments.

Salary Range: 107000 to 160000 (Currency: USD) (Pay period: per-year-salary)

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 we're working with policymakers, suppliers, and many others to build the energy industry of the future.

We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading fusion company in the world.

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 Mechanical Engineer – Cable Magnets

As a Mechanical Engineer for the Cable Magnets Engineering team, you will own hardware from early concepts to delivery. You will develop the design, performing thermal, structural, and electromagnetic analysis to ensure the hardware meets requirements. You will develop design notes, technical specifications, and other documentation necessary to manufacture and install the Cable Magnet hardware and supporting systems. In your role you will also support procurement in the preparation and execution of manufacturing contracts, and support CFS production and assembly teams through build and installation of your designs.

What you'll do:

Act autonomously as the primary owner of cable magnet hardware for SPARC, ARC, or other projects, ensuring designs are completed, validated, procured, built, and installed correctly and on time
Produce new and iterate on existing design concepts, using a deep understanding of physics, structural mechanics, and analysis techniques for both metallics and composites
Liaise with partner teams such as R&D, analysis, manufacturing, and procurement to drive completion of program milestones in a timely fashion
Diagnose issues on the production and assembly line and provide immediate path forward based on known understanding of hardware. Propose and implement design solutions based on root cause
Prepare reports, presentations, and other documentation to serve as design documentation and validation of final Cable Magnet systems

What we're looking for:

Bachelor’s degree in mechanical engineering, aerospace engineering, or another relevant field
A minimum of 5 years of engineering design and analysis experience is required, including at least 2 years providing engineering support to production hardware in the form of resolving technical issues and implementing design for manufacturing or assembly changes
Relevant hands-on experience in the form of parts designed for high loads and/or extreme environments
Excellent fundamental knowledge of mechanical systems such as static structures and heat transfer
Familiarity with all steps in the design process with an emphasis on creativity, simplicity, and execution
Be self-motivated, committed to self-growth, and exhibit excellent problem-solving skills
CAD proficiency (required) NX preferred, any acceptable
FEA (required) ANSYS and COMSOL preferred

Bonus points for:

Demonstrated record of design of mechanical components beyond desktop scale. E.g. high power (MW+), high mass (ton+), high force (MN+)
Expertise in AMSE Y14 GD&T principles
Experience in production or heavy equipment assembly environments
Design experience with
Electromagnets
Vacuum systems
Welding
Composite materials
Radiation environments
Cryogenic environments

Must-have requirements:

Perform activities such as sitting for extended periods of time
Work in a facility that contains industrial hazards including heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics
Perform activities such as sitting for extended periods of time
Occasional travel, occasional nights/weekends/on-call

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.

This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.

About the Company

Commonwealth Fusion Systems

Develops high-temperature superconducting fusion magnets

Commonwealth Fusion Systems builds fusion energy systems that aim to provide clean, affordable power. It designs tokamaks using high-temperature superconducting magnets to make smaller, less expensive machines. Its flagship SPARC is intended to produce net energy, with ARC envisioned as the first commercial fusion power plant. The company collaborates with MIT and focuses on a data-driven, mission-focused path to scalable fusion energy for large energy users.

Company size: 1,001-5,000
Company stage: Grant
Total funding: $4B
Headquarters: Harvard, MA
Founded: 2018

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