Quantum-Si Reviews

2.9

24% would recommend to a friend

(23 total reviews)

38% positive business outlook

Quantum-Si has an employee rating of 2.9 out of 5 stars, based on 23 company reviews on Glassdoor which indicates that most employees have an average working experience there. The Quantum-Si employee rating is in line with the average (within 1 standard deviation) for employers within the Pharmaceutical and biotechnology industry (3.5 stars).

Reviews by job title

23 reviews
4.0
12 Mar 2026
Recommend
CEO approval
Business outlook

Pros

Collaborative and supportive work environment with knowledgeable colleagues. Strong emphasis on teamwork and cross-functional collaboration. Friendly culture where people are generally willing to help each other.

Cons

Workload can fluctuate depending on project timelines and business priorities. Priorities can shift quickly as programs evolve.

2.0
16 Mar 2025

Poor management

Anonymous employee
Recommend
CEO approval
Business outlook

Pros

- Good salary and benefits. - Work was relatively easy, which felt unusual for a startup.

Cons

- Poor management from mid-level to the top: My manager provided unclear goals and directions, and there were many questionable decisions at the highest levels. As a result, the work was relatively easy, which was unusual for a startup. - Excessive nepotism: While some level of nepotism can be justified, it was prevalent here, with family members and close friends hired. If they were competent, this wouldn’t be an issue, but in my experience, many were not. - Limited growth despite high spending: The company struggled to grow as a startup while continuing to spend heavily

Viewing 1 - 3 of 23 Reviews

Glassdoor has 24 Quantum-Si reviews submitted anonymously by Quantum-Si employees. Read employee reviews and ratings on Glassdoor to decide if Quantum-Si is right for you.