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Commonwealth Fusion Systems

Is this your company?

A decent idea, glurged - Anonymous employee Commonwealth Fusion Systems Employee Review

2.0
Jul 17, 2024
Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

The project is massively impactful, long overdue. If it succeeds. Good opportunity to learn valuable niche skills that can be applied elsewhere Ok base salary.

Cons

Has outgrown its academic roots and ethos. Management is now turning towards Musk-ite platitudes to make up lost ground due to mismanagement Strong disconnect between management and employees. The absolute worst healthcare plan I have ever had to deal with. Saturdays off are now optional at Management's discretion No Raises

Explore other reviews about Commonwealth Fusion Systems

5.0
May 8, 2026
Recommend
CEO approval
Business Outlook

Pros

Great place to work, low ego, highly motivated colleagues who are mission driven and want to make things work

Cons

High pressure, short timelines, pay could be better. Not a normal 9-5

2.0
Jun 5, 2026
Recommend
CEO approval
Business Outlook

Pros

Most of the individual contributors/hourly employees are excellent people who are there for the mission of clean energy. And god bless the technicians & test operations team, who are basically carrying the company's progress right now, without much recognition.

Cons

Godawful company management and benefits, in every aspect/level. - RAISES CAPPED AT 2%. Even for the highest performers. - "Unlimited PTO (most people take 2-3 weeks)" --quote from onboarding document - No bonuses, for anything (performance, retention, signing) - Your salary offer WILL be disappointing; they are banking on applicants being too "mission driven" to care about competitive compensation - Shady practices from HR on the non-compete agreement. Unless you are specifically "fired without cause" (layoffs), YOU ARE NOT BOUND BY THE NONCOMPETE UNLESS THEY PAY YOU GARDEN LEAVE (6 MO. SALARY). Check the agreement you signed. HR will make it seem like you're bound by it no matter what. -CEO refuses to let go of technical decision-making and is slowing down/obstructing useful projects -Every team uses different standards and software because someone on that team came from a company that used that standard/software -Onboarding barely existant -Onsite cafe is NOT free, only mildly subsidised. Plus, bare-bones food options for folks working 3rd shift. -The decision-making of team-level managers and middle-management folks appears to be extremely personality-dependent/who shouts the loudest/who is the most conflict-avoidant. Then, that mess gets dumped onto ICs in the form of conflicting/constantly changing priorities & job security being dependent on who you're friends with.

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