Commonwealth Fusion Systems jobs
All open jobs at Commonwealth Fusion Systems, updated every few hours. Counts as of November 13, 2026.
- Open roles
- 143
- Posted in the last 7 days
- 7
- Open 60 days or more
- 31%
- Typical time open: still measuring
- —
Open roles by department
- Engineering83
- Operations23
- Other19
- Data7
- Finance6
- Customer success2
- Design1
- Legal & policy1
- Marketing1
Live right now
Recent roles at Commonwealth Fusion Systems
5 newer roles for Pro — posted in the last 24 hours, listed with the employer once they’re a day old.
Senior Realtime Controls Software Engineer(opens the employer’s site)
Engineering · Hybrid · Devens, MA · Senior
$134K–$205KPosted Nov 10Lead Technician, Electrical Assembly Testing(opens the employer’s site)
Other · On-site · Devens, MA · Lead & director
$36.00–$41.00/hPosted Nov 7Senior Diagnostics Mechanical Engineer(opens the employer’s site)
Engineering · On-site · Devens, MA · Senior
$134K–$205KPosted Nov 4Diagnostics Mechanical Engineer(opens the employer’s site)
Engineering · On-site · Devens, MA
$107K–$160KPosted Nov 4R&D Test Engineer(opens the employer’s site)
Engineering · On-site · Devens, MA
$107K–$160KPosted Nov 4Manufacturing Engineer - Third Shift(opens the employer’s site)
Engineering · On-site · Devens, MA
$107K–$160KPosted Nov 4Senior R&D Engineer(opens the employer’s site)
Engineering · On-site · Devens, MA · Senior
$134K–$205KPosted Nov 4Senior Finance Analyst, Operations(opens the employer’s site)
Finance · Hybrid · Devens, MA · Senior
$134K–$205KPosted Nov 4R&D Test Engineer - Electrical Power Systems(opens the employer’s site)
Engineering · On-site · Devens, MA
$107K–$160KPosted Nov 4Intern - R&D Multiphysics Simulation Intern - Spring or Summer 2027(opens the employer’s site)
Other · On-site · Somerville, MA · Entry level
$25.00–$38.00/hPosted Nov 4Subassemblies Technician(opens the employer’s site)
Other · On-site · Devens, MA
$30.00–$52.00/hPosted Nov 3Senior Manufacturing Engineer - Assembly - Second Shift(opens the employer’s site)
Engineering · On-site · Devens, MA · Senior
$134K–$205KPosted Nov 2Hiring Event for Production Technicians: First, Second and Third shifts available(opens the employer’s site)
Marketing · On-site · Somerville, MA
$30.00–$47.00/hPosted Nov 2Shift Operator- SPARC - Third Shift(opens the employer’s site)
Other · On-site · Devens, MA
$30.00–$52.00/hPosted Oct 31Intern - Electrical/Electromechanical Engineer - Spring 2027(opens the employer’s site)
Engineering · On-site · Devens, MA · Entry level
$25.00–$38.00/hPosted Oct 31Intern - Mechanical and Magnet Engineer - Spring or Summer 2027(opens the employer’s site)
Engineering · On-site · Devens, MA · Entry level
$25.00–$38.00/hPosted Oct 31Intern - Structural Engineer - Summer 2027(opens the employer’s site)
Engineering · On-site · Devens, MA · Entry level
$25.00–$38.00/hPosted Oct 30Intern - Fusion Fuel Systems - Spring or Summer 2027(opens the employer’s site)
Other · On-site · Devens, MA · Entry level
$25.00–$38.00/hPosted Oct 30Intern - R&D Test Engineer - Spring or Summer 2027(opens the employer’s site)
Engineering · On-site · Devens, MA & Somerville, MA · Entry level
$25.00–$38.00/hPosted Oct 30Senior Power Electronics Engineer(opens the employer’s site)
Engineering · On-site · Devens, MA · Senior
$134K–$205KPosted Oct 30Senior Electrical Engineer(opens the employer’s site)
Engineering · On-site · Milpitas, CA · Senior
$146K–$210KPosted Oct 29Senior Modeling and Simulation Engineer(opens the employer’s site)
Engineering · On-site · Milpitas, CA · Senior
$146K–$210KPosted Oct 29Senior Mechanical Engineer - Vacuum(opens the employer’s site)
Engineering · On-site · Milpitas, CA · Senior
$146K–$210KPosted Oct 29Staff Process Engineer(opens the employer’s site)
Engineering · On-site · Devens, MA · Lead & director
$152K–$230KPosted Oct 28Senior Quality Engineer(opens the employer’s site)
Engineering · On-site · Devens, MA · Senior
$134K–$205KPosted Oct 28Mechanical Engineer - Manufacturing Equipment(opens the employer’s site)
Engineering · On-site · Devens, MA
$107K–$160KPosted Oct 28Machinist - Contract - Weekend Shift(opens the employer’s site)
Operations · On-site · Devens, MA
$35.00–$50.00/hPosted Oct 28Production Technician Supervisor - First Shift(opens the employer’s site)
Operations · On-site · Devens, MA
$109K–$160KPosted Oct 28Senior Strategic Program Manager, Open Innovation(opens the employer’s site)
Operations · Hybrid · Devens, MA · Senior
$134K–$205KPosted Oct 28Intern - Plasma Physics - Summer 2027(opens the employer’s site)
Other · On-site · Devens, MA · Entry level
$25.00–$38.00/hPosted Oct 28