Quantinuum reviews

3.7

64% would recommend to a friend

(7 total reviews)

Ilyas Khan and Rajeeb Hazra

55% approve of CEO

74% positive business outlook

Reviews by job title

7 reviews

Reviews about "Compensation"

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2.0
Dec 29, 2025
Recommend
CEO approval
Business Outlook

Pros

The science put out by Quantinuum is excellent, and many incredibly smart physicists are working on some of the most interesting problems in quantum computing. As a physicist the work we get to do is very fulfilling and most teams have reasonable work life balance (though not all do). Many scientists value working at a company that makes credible and realistic claims, which is often not the case in the quantum computing space. This has been relatively easy for Quantinuum to maintain as it has consistently developed some of the best quantum computing hardware in the world and is staffed by many incredible scientists and engineers.

Cons

The pay is low and benefits are lacking relative to competitors. While broadly speaking work-life balance is reasonable, certain teams are expected to put in huge hours to get things done on time, and this can extend over significant periods of time. While the RSUs that are offered certainly have reasonable expectation value, it is entirely unclear when that value will be realized. The CEO making vague and contradictory statements about these issues does not provide much room for optimism on this topic amongst employees and does not inspire confidence in the executive team.

4.0
May 8, 2025

Great colleagues

Recommend
CEO approval
Business Outlook

Pros

Great colleagues and friendly environment, really good work life balance. Very smart people and learning a lot

Cons

Pay is just so so much lower than other quantum companies. Leadership and HR know this but don't have plans to change anything. I think they still view things from the Honeywell perspective of a giant old company.

3.0
Nov 16, 2023
Recommend
CEO approval
Business Outlook

Pros

If you are a physicist, this place is amazing. Enormous budgets, lots of talent, lots of freedom - it is basically grad school with much better pay. For physicists (especially ion trappers) this is a 5 star company.

Cons

If you are an engineer, don't bother even applying. This company is "science led" and doesn't do engineering. You will get crapped on because you are not an ion trapper. I once saw the president of the company give a guy a hard time because he wasn't an ion trapper. Engineering managers are all physicists who failed up. No one knows how to do product development - it is all cut-and-fit on the fly, then wonder why nothing works. You have almost no chance of promotion. For engineers this is a 1 star company.

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