Data as of 2026-06-04
vs 
Commonwealth Fusion Systems vs Pyka
Hiring comparison for two climate-tech companies. Commonwealth Fusion Systems shows the larger live hiring footprint with 109 active roles, compared with 22 at Pyka. Commonwealth Fusion Systems spans 6 tracked job locations while Pyka spans 3. Commonwealth Fusion Systems lists 2 remote-friendly roles; Pyka lists 5.
Commonwealth Fusion Systems roles
Pyka roles
Combined locations
Combined remote
Last refreshed
Side-by-side data
| Metric | Commonwealth Fusion Systems | Pyka |
|---|---|---|
| HQ | Devens, US | Alameda, US |
| Website | cfs.energy | flypyka.com |
| ATS | lever | lever |
| Open roles | 109 | 22 |
| Tracked locations | 6 | 3 |
| Remote-friendly roles | 2 | 5 |
| Onsite roles | 98 | 17 |
| Newest posting | 2026-06-03 | 2026-05-20 |
| Top role mix | Manufacturing 40, Engineering 24, Other 24 | Engineering 13, Field 2, Operations 2 |
| Top locations | Devens, MA, Somerville, MA, Milpitas, CA, Devens, MA & Richmond, VA | Alameda HQ, Mato Grosso, Brazil |
What differs
Commonwealth Fusion Systems is headquartered in Devens, US and uses lever for its current openings. 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. Pyka is headquartered in Alameda, US and uses lever. Its tracked hiring mix is led by Engineering 13, Field 2, Operations 2, with recent roles spread across Alameda HQ, Mato Grosso, Brazil.
This comparison is based on live public ATS data rather than employer claims. The strongest difference today is hiring volume: Commonwealth Fusion Systems has 109 active roles and Pyka has 22. Remote availability also differs, with 2 remote-friendly roles at Commonwealth Fusion Systems and 5 at Pyka. Use the company pages below to inspect every posting before applying through the original employer ATS.
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
Latest Pyka roles
- Senior Buyer/Planner Alameda HQ · onsite · posted 2026-05-20
- Aircraft Maintenance Manager (Brazil) Brazil · remote · posted 2026-05-13
- Facilities and Safety Lead Alameda HQ · onsite · posted 2026-05-12
- Senior Sales Manager (Brazil) Mato Grosso · remote · posted 2026-05-08
- Software Engineering Intern Alameda HQ · onsite · posted 2026-05-06
- Embedded Software Engineer Alameda HQ · onsite · posted 2026-04-27
Other comparisons
- Commonwealth Fusion Systems vs Pivot Bio · 131 combined open roles
- Commonwealth Fusion Systems vs Plume · 130 combined open roles
- Commonwealth Fusion Systems vs Turion Space · 130 combined open roles
- Commonwealth Fusion Systems vs Heart Aerospace · 136 combined open roles
- Form Energy vs Pyka · 124 combined open roles
FAQ
- Who is hiring more — Commonwealth Fusion Systems or Pyka?
- Commonwealth Fusion Systems has more open roles (109) than Pyka (22) as of 2026-06-04.
- Where do Commonwealth Fusion Systems and Pyka overlap geographically?
- Commonwealth Fusion Systems HQ: Devens, US; Pyka HQ: Alameda, US. Commonwealth Fusion Systems hires across Devens, MA, Somerville, MA, Milpitas, CA, Devens, MA & Richmond, VA. Pyka hires across Alameda HQ, Mato Grosso, Brazil.
- Which is more remote-friendly?
- Commonwealth Fusion Systems lists 2 remote-friendly roles (2% of openings); Pyka lists 5 (23%). Counts are from each employer's ATS workplace_type field.
- Which roles are most active at Commonwealth Fusion Systems and Pyka?
- Commonwealth Fusion Systems: Manufacturing 40, Engineering 24, Other 24. Pyka: Engineering 13, Field 2, Operations 2.
- 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.