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Commonwealth Fusion Systems

Is this your company?

Great team and awesome project, but mission comes before people - Supplier Integration Manager Commonwealth Fusion Systems Employee Review

4.0
5 June 2023
Recommend
CEO approval
Business outlook

Pros

Commonwealth Fusion Systems is working towards an incredible mission and could very plausibly change the world for the better. It's an inspiring place to be, and you get to work on some amazing technical problems. The team is top-notch, and the incredibly talented people are also very pleasant to work with.

Cons

Commonwealth Fusion Systems has continuously made decisions to marginalize their employees for the sake of the mission. On the one hand, they have limited resources to do something very audacious, so I understand the temptation to increase hours, withhold raises (despite high inflation), and add more work to everyone's plate than could possibly get done. On the other hand, the senior leadership needs to realize their mission cannot be completed without their people, and they need to take steps to keep their employees happy or they will continue to lose talent.

Explore other reviews about Commonwealth Fusion Systems

5.0
8 May 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
5 June 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.

2
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