Commonwealth Fusion Systems
Hiring · 132 open jobsGeneral information
Commonwealth Fusion Systems is the world's largest company building commercial fusion energy machines. SPARC is its machine designed to become the first fusion device to produce net energy. ARC is the power plant it plans to build next, meant to turn that fusion reaction into electricity for the grid. The company is based in Devens, Massachusetts.
Commonwealth Fusion Systems started in 2018 as a spin-off from MIT. It has grown fast, from about 350 employees in late 2022 to more than 1,000 by 2025. That growth is funded by large investors: the company raised $1.8 billion in 2021 and another $1 billion in 2026. For engineers, that means real money behind a technology still years from selling power commercially. Commonwealth Fusion Systems is an H-1B sponsor.1
Hiring activity
New jobs added per week2
View these weekly figures as a table
| Week beginning | New listings |
|---|---|
| September 7, 2026 | 14 |
| September 14, 2026 | 6 |
| September 21, 2026 | 17 |
| September 28, 2026 | 18 |
| October 5, 2026 | 14 |
| October 12, 2026 | 16 |
| October 19, 2026 | 6 |
| October 26, 2026 (in progress) | 9 |
Open jobs
132 open · updated todayPage 3 of 7, most recently added first · Download (CSV)3
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What does Commonwealth Fusion Systems actually pay? Based on previous and active job listings with specified pay ranges, the posted ranges below are hourly. Note that 95% of jobs don't list any pay information, so figures may be skewed towards cities like NYC, where pay disclosure is mandated for each posting.4
Plus 11 hourly jobs at $30 to $65 an hour.
Visa sponsorship
Does Commonwealth Fusion Systems sponsor visas? Using USCIS data, we've collected the number of H-1Bs granted from 2021 to 2023. Commonwealth Fusion Systems is a likely employer for applicants who require sponsorship.5
Visa petitions approved each year (USCIS)5
| Fiscal year | Approved |
|---|---|
| FY2021 | 0 |
| FY2022 | 2 |
| FY2023 | 0 |
Based on public USCIS and Department of Labor records. Past filings do not guarantee future sponsorship. Browse all H1B sponsors →
Similar companies
Common questions
Is Commonwealth Fusion Systems hiring now?
Yes. There are 131 open jobs, with 63 added in the last 30 days. They close fast though, often within 37 days, so don't wait.
Does Commonwealth Fusion Systems sponsor H-1B visas?
Yes. Government records show 2 approved petitions from FY2021 to FY2023.
How much does Commonwealth Fusion Systems pay?
Posted pay runs $30 to $65 an hour. We only show pay the company printed itself, never estimates.
Interview OS
Company pages built from direct checks of real hiring systems.
Notes & sources
- 1. Company description. Written by InterviewOS from Commonwealth Fusion Systems's public materials and press coverage; facts are checked against the sources below.
- 2. Weekly counts. A count is the number of listings the pipeline saw for the first time in that week. Weeks begin Monday; the onboarding week is excluded from the scale and every average.
- 3. Live counts. Deduplicated live listings observed daily on Commonwealth Fusion Systems's own hiring system; last check October 28, 2026. Stale and syndicated posts on aggregator sites are not counted.
- 4. Posted pay. Ranges extracted from the text of Commonwealth Fusion Systems's own listings; a range appears only when the employer printed one. Extraction is still rolling out, so this table can lag the board.
- 5. Federal visa records. USCIS H1B Employer Data Hub and US Department of Labor LCA disclosure files, matched to this company by name.
Sources
cfs.energy
USCIS H-1B Employer Data Hub
US Department of Labor LCA disclosure files
About the data
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