Data as of 2026-06-04
vs 
Astro Mechanica vs Commonwealth Fusion Systems
Hiring comparison for two climate-tech companies. Commonwealth Fusion Systems shows the larger live hiring footprint with 109 active roles, compared with 38 at Astro Mechanica. Astro Mechanica spans 3 tracked job locations while Commonwealth Fusion Systems spans 6. Astro Mechanica lists 5 remote-friendly roles; Commonwealth Fusion Systems lists 2.
Astro Mechanica roles
Commonwealth Fusion Systems roles
Combined locations
Combined remote
Last refreshed
Side-by-side data
| Metric | Astro Mechanica | Commonwealth Fusion Systems |
|---|---|---|
| HQ | San Francisco, US | Devens, US |
| Website | astromecha.co | cfs.energy |
| ATS | ashby | lever |
| Open roles | 38 | 109 |
| Tracked locations | 3 | 6 |
| Remote-friendly roles | 5 | 2 |
| Onsite roles | 0 | 98 |
| Newest posting | Not dated | 2026-06-03 |
| Top role mix | Engineering 15, Design 8, Manufacturing 5 | Manufacturing 40, Engineering 24, Other 24 |
| Top locations | San Francisco, Remote, San Francisco - Remote | Devens, MA, Somerville, MA, Milpitas, CA, Devens, MA & Richmond, VA |
What differs
Astro Mechanica is headquartered in San Francisco, US and uses ashby for its current openings. Its tracked hiring mix is led by Engineering 15, Design 8, Manufacturing 5, with recent roles spread across San Francisco, Remote, San Francisco - Remote. Commonwealth Fusion Systems is headquartered in Devens, US and uses lever. Its tracked hiring mix is led by Manufacturing 40, Engineering 24, Other 24, with recent roles spread across Devens, MA, Somerville, MA, Milpitas, CA, Devens, MA & Richmond, VA.
This comparison is based on live public ATS data rather than employer claims. The strongest difference today is hiring volume: Astro Mechanica has 38 active roles and Commonwealth Fusion Systems has 109. Remote availability also differs, with 5 remote-friendly roles at Astro Mechanica and 2 at Commonwealth Fusion Systems. Use the company pages below to inspect every posting before applying through the original employer ATS.
Latest Astro Mechanica roles
- Senior Flight Software Engineer San Francisco
- Senior Propulsion Design Engineer San Francisco
- Open Resume Submission San Francisco
- Airframe Manufacturing Lead San Francisco
- Senior Test Engineer San Francisco
- Propulsion Design Engineer San Francisco
Latest Commonwealth Fusion Systems roles
- Lead Assembly Technician - Third Shift Devens, MA · onsite · posted 2026-06-03
- Lead Assembly Technician - Second Shift Devens, MA · onsite · posted 2026-06-03
- Fiber Optic Specialist Somerville, MA · onsite · posted 2026-06-03
- Senior Manager, Manufacturing Engineering Devens, MA · onsite · posted 2026-06-02
- Production Technician Supervisor - First Shift Devens, MA · onsite · posted 2026-06-02
- Buyer Devens, MA · hybrid · posted 2026-06-01
Other comparisons
- Commonwealth Fusion Systems vs Gridware · 146 combined open roles
- Commonwealth Fusion Systems vs Inversion Space · 148 combined open roles
- Commonwealth Fusion Systems vs Span · 143 combined open roles
- Aerones vs Commonwealth Fusion Systems · 141 combined open roles
- Antora Energy vs Commonwealth Fusion Systems · 141 combined open roles
FAQ
- Who is hiring more — Astro Mechanica or Commonwealth Fusion Systems?
- Commonwealth Fusion Systems has more open roles (109) than Astro Mechanica (38) as of 2026-06-04.
- Where do Astro Mechanica and Commonwealth Fusion Systems overlap geographically?
- Astro Mechanica HQ: San Francisco, US; Commonwealth Fusion Systems HQ: Devens, US. Astro Mechanica hires across San Francisco, Remote, San Francisco - Remote. Commonwealth Fusion Systems hires across Devens, MA, Somerville, MA, Milpitas, CA, Devens, MA & Richmond, VA.
- Which is more remote-friendly?
- Astro Mechanica lists 5 remote-friendly roles (13% of openings); Commonwealth Fusion Systems lists 2 (2%). Counts are from each employer's ATS workplace_type field.
- Which roles are most active at Astro Mechanica and Commonwealth Fusion Systems?
- Astro Mechanica: Engineering 15, Design 8, Manufacturing 5. Commonwealth Fusion Systems: Manufacturing 40, Engineering 24, Other 24.
- How fresh is this comparison?
- Refreshed 2026-06-04. Jobs are pulled from each company's public ATS API (Greenhouse / Lever / Ashby / Workable / SmartRecruiters / Recruitee) on a daily cron. Climate Job Radar is not affiliated with either company.
Related
Source: Job listings from each company's public ATS API (Greenhouse / Lever / Ashby / Workable / SmartRecruiters / Recruitee), refreshed daily. Last refreshed 2026-06-04.