Wouldn't look back - Anonymous employee Sema4 Employee Review

1.0
18 Oct 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
2 Jan 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
18 Dec 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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