Senior CAD Application Engineer
Commonwealth Fusion Systems
Company Overview
Commonwealth Fusion Systems (CFS)
Cambridge, MA, United States
2018
Approximately 430 employees (source: zoominfo.com). Revenue figures vary, with reports indicating $211.3 million or $31.7 million, though as a pre-revenue fusion developer focused on R&D, these may reflect funding or operations rather than sales.
What They Do
Commonwealth Fusion Systems (CFS) is a pioneering private fusion energy company that specializes in tokamak-based magnetic confinement fusion. Founded as a spinout from MIT's Plasma Science and Fusion Center, CFS focuses on utilizing high-temperature superconducting magnets to achieve commercial net energy production (source: cfs.energy). The company has made significant strides in its technology, particularly with the development of compact fusion machines that leverage decades of tokamak science. Their flagship projects, SPARC and ARC, aim to demonstrate net energy gain and commercial viability in the coming years (source: cfs.energy).
Projects & Track Record
CFS is currently engaged in several groundbreaking projects, most notably the construction of SPARC, which is set to be the world's first net-energy fusion machine. Located at their Fusion Energy Campus in Devens, Massachusetts, SPARC aims to demonstrate net energy gain by the late 2020s (source: cfs.energy). Additionally, CFS is planning the ARC project, a 400 MW-class grid-scale tokamak power plant designed for commercial deployment in the early 2030s. These projects are underpinned by significant technological advancements, including the successful testing of the central solenoid magnet module (CSMC) in November 2024, which confirmed the manufacturability of critical components for SPARC (source: zoominfo.com).
Recent Developments
In the past two years, CFS has made remarkable progress, including the opening of its Devens Fusion Energy Campus on February 10, 2023, which was attended by notable figures such as U.S. Secretary of Energy Jennifer Granholm (source: cfs.energy). The company has also secured substantial funding, raising $863 million in August 2024, building on a previous $1.8 billion round in May 2023, bringing total funding to over $2 billion (source: wbjournal.com). Furthermore, CFS announced its first commercial power plant site in Chesterfield County, Virginia, which will be independently financed and operated, with plans for grid connection in the early 2030s (source: zoominfo.com).
Working There
CFS offers a range of roles across various disciplines, including fusion science, engineering, manufacturing, and materials science. The majority of their workforce is based at the Devens campus, which has grown to over 430 employees (source: cfs.energy). The company culture emphasizes rapid execution and transparency, attracting top talent from the fusion and manufacturing sectors. Key executives include Co-Founder and CEO Bob Mumgaard, along with other leaders in operations and science, indicating a strong demand for expertise in tough tech and physics (source: nasdaqprivatemarket.com). While specific benefits are not detailed, the scale-up and investor backing suggest competitive packages for high-caliber roles in a mission-driven environment (source: cfs.energy). Job seekers are encouraged to monitor their careers page for openings related to SPARC and ARC advancements.
Last updated on Feb 23, 2026 | Report an issue
Job Description
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 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 nearly $3 billion in capital, making us the largest and leading private 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 Senior CAD Application Engineer
CFS is hiring a Senior CAD Application Engineer to develop tools and processes to leverage the CAD NX and TC data to drive development, feed analysis tools and control systems. In this role the Senior CAD Application Engineer must have strong mechanical design experience as well as software development experience.
We're looking for more thinkers, doers, 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.
What you'll do
- Deliver complete mechanical designs including, tolerance stacks, coordinate CTE/Structural analysis, and assembly procedures
- Develop CAD design and software workflows that convert parametric models from NX CAD geometry into formats that can be used by engineering teams and control systems within analysis algorithms
- Develop software automation tools that enable users to interact with NX data from Python
- Develop software tooling for integrating NX model parameters, coordinate systems, and geometry in existing scientific software tooling
- Utilize software tools and the NXOpen API to enable coordinate transformations and quick access to a single source of truth
- Have experience with ASME Y14.100 and ASME Y14.5 standards
- Develop software tooling to ensure that CAD designs and documentation comply with industry and internal CAD standards
- Be part of a matrix organization as a member of the CAD Team reporting to a CAD Team Leader/Manager
- Work within a multi-disciplinary and proven team of top scientists and engineers to support our functional teams
What we're looking for
- Bachelor's degree in engineering or STEM related field
- 10 plus years of industry experience
- Experienced with engineering release work flows and PLM tools
- Five years of experience as a design engineer of mechanical, electro-mechanical or thermal-mechanical systems
- Proven ability to extract key data using software automations for NX and TC
- Experienced with GD&T per ASME Y14.100 and ASME Y14.5
- Ten plus years of experience in application of Siemens NX and Teamcenter
- Self motivated and ability to apply problem solving methods
- Experienced with programing Python, NXOpen API, Linux, Git and Computational Geometry
Bonus points for
- Master's degree in engineering or STEM related field
- Rigid body kinematics analysis, thermal analysis and finite element analysis
- Commercialization of new technology
Must-have Requirements
- Perform activities such as typing and sitting, etc. 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, high current, pressure systems, and cryogenics
- Willingness to occasionally travel or work required nights/weekends/on-call
$110,000 - $185,000 a year
Salary range for this full-time position + equity + benefits. The actual salary will depend on level, location, qualifications, and experience. The range displayed on each job posting reflects new hire salaries for the position across all US locations. Benefits include:
- Competitive compensation with equity
- 13 Company-wide Holidays
- Flexible vacation days
- 10 sick days
- Generous parental leave policy
- Health, dental, and vision insurance
- 401(k) with employer matching
- Professional growth opportunities
- Team-building activities
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.
Apply now
Job expired?Please let Commonwealth Fusion Systems know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
Apply now
Job expired?Please let Commonwealth Fusion Systems know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
Discover how you’re connected
View connectionsSee your contacts at Commonwealth Fusion Systems on LinkedIn to leverage your network in applying for this position.
Get job alerts
Get job alerts for opportunities in Devens, Massachusetts, United States
Join Talent Pool
Let top clean energy employers find you
About the role
March 19, 2026
Full time
Company
- Devens, Massachusetts, United States
10+ years
UTC-05:00