Commonwealth Fusion Systems careers
Commonwealth Fusion Systems is hiring: 99 open roles as of November 14, 2026, 3% remote, 59% of them senior level. Posted pay runs $62k–$205k. The roles ask most for Python, C++ and CI/CD.
Which of Commonwealth Fusion Systems’s 99 roles fit you?
Pick your team. landed reads each role against your resume and applies to the ones that fit.
- Power Electronics EngineerDevens
- Realtime Controls Software EngineerDevens
- R&D EngineerSomerville
- R&D Technician - First ShiftSomerville
- Senior Opto-mechanical EngineerDevens
CFS is using revolutionary high temperature superconducting magnets developed in collaboration with MIT to build smaller and lower-cost tokamak fusion systems.
Commonwealth Fusion Systems is inClimate and environmentEnergy
Open roles
99
Founded
2018
Headcount
800
Remote roles
3%
Hiring now · checked today
Commonwealth Fusion Systems has 99 roles open right now.
landed applies to the ones that fit you on Commonwealth Fusion Systems's own site, the hour they go live.
landed · Commonwealth Fusion Systemsautopilot on
Power Electronics Engineer
Devens, MA
Realtime Controls Software Engineer
Devens, MA
R&D Engineer
Somerville, MA
99 open
Open roles at Commonwealth Fusion Systems
Checked on Commonwealth Fusion Systems’s careers page
Power Electronics Engineer
Commonwealth Fusion Systems
Devens, MA
Power Electronics Engineer
Devens, MA
$107k–$160k
2d ago
Realtime Controls Software Engineer
Commonwealth Fusion Systems
Devens, MA
Realtime Controls Software Engineer
Devens, MA
$107k–$160k
2d ago
R&D Engineer
Commonwealth Fusion Systems
Somerville, MA
R&D Engineer
Somerville, MA
$107k–$160k
2d ago
R&D Technician - First Shift
Commonwealth Fusion Systems
Somerville, MA
R&D Technician - First Shift
Somerville, MA
$62k–$94k
2d ago
Senior Opto-mechanical Engineer
Commonwealth Fusion Systems
Devens, MA
Senior Opto-mechanical Engineer
Devens, MA
$134k–$205k
2d ago
Senior Realtime Controls Software Engineer
Commonwealth Fusion Systems
Devens, MA
Senior Realtime Controls Software Engineer
Devens, MA
$107k–$160k
5d ago
Lead Technician, Electrical Assembly Testing
Commonwealth Fusion Systems
Devens, MA
Lead Technician, Electrical Assembly Testing
Devens, MA
$75k–$85k
1w ago
Senior Diagnostics Mechanical Engineer
Commonwealth Fusion Systems
Devens, MA
Senior Diagnostics Mechanical Engineer
Devens, MA
$134k–$205k
1w ago
Apply to Commonwealth Fusion Systems with landed
Commonwealth Fusion Systems hires through Lever. landed applies on Commonwealth Fusion Systems’s own Lever form, with your résumé tailored and every question answered for the role.
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- 2landed picks the Commonwealth Fusion Systems roles that fit you
- 3It applies on Lever. Review each one first if you like
Posted pay
Commonwealth Fusion Systems salary by role
Across Commonwealth Fusion Systems’s postings that list pay, the middle of the range runs $62k–$205k. The highest posted range right now is $187k–$270k for Principal Mechanical Engineer - Web Handling. Ranges are base pay as the company posts it.
| Role | Postings with pay | Posted range |
|---|---|---|
| Principal Mechanical Engineer - Web Handling | 1 | $187k–$270k |
| Staff OT/IT Support Engineer | 1 | $166k–$240k |
| Senior Electrical Engineer | 1 | $146k–$210k |
| Senior Modeling and Simulation Engineer | 1 | $146k–$210k |
| Senior Mechanical Engineer - Vacuum | 1 | $146k–$210k |
| Senior Mechanical Engineer | 1 | $146k–$210k |
| Senior Opto-mechanical Engineer | 1 | $134k–$205k |
| Senior Diagnostics Mechanical Engineer | 1 | $134k–$205k |
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Frequently asked
Is Commonwealth Fusion Systems hiring right now?
Yes. Commonwealth Fusion Systems has 99 open roles live on its own careers page today, and the list above refreshes daily.
Does Commonwealth Fusion Systems hire remote?
About 3% of Commonwealth Fusion Systems’s open roles are remote. The rest are based in its offices, including Devens, US.
What does Commonwealth Fusion Systems pay?
Across the Commonwealth Fusion Systems postings that list pay, the middle of the range runs $62k–$205k.
How do I apply to Commonwealth Fusion Systems?
Commonwealth Fusion Systems takes applications on Lever. Every role above links to Commonwealth Fusion Systems’s own application. Or let landed apply for you: it fills the company’s form with your profile and writes the answers for each role.
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