Wouldn't look back - Anonymous employee Sema4 Employee Review

1.0
Oct 18, 2018
Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Some nice people, but that's a select handful if you're lucky enough to meet with them

Cons

+Very egotistical leadership focused on old glories and Sinai brand, rather than present wins +Poor benefits, low pay -- and deliberate undervaluation of employee skills and potential +Very much a good old boys club vibe at the top -- the only way to move up here is to know somebody from a previous job. NO real opportunity to grow +Call themselves a start-up, but the culture, like the executives, is IBMish -- most hierarchical place

Explore other reviews about Sema4

5.0
Jan 2, 2026
Recommend
CEO approval
Business Outlook

Pros

Great staff and pay. Great for entry level

Cons

they had to lay off a lot of people

5.0
Dec 18, 2025
Recommend
CEO approval
Business Outlook

Pros

Great pay and work-life balance. Great people to work with.

Cons

Bad layoffs, and the stock dropped.

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