Slack reviews

4.0

77% would recommend to a friend

(1,095 total reviews)
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Stewart Butterfield

88% approve of CEO

70% positive business outlook

Slack has an employee rating of 4.0 out of 5 stars, based on 1,095 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Slack employee rating is in line with the average (within 1 standard deviation) for employers within the Informationstechnologie industry (3.9 stars).

Reviews by job title

1K reviews
5.0
Sep 10, 2019
Recommend
CEO approval
Business Outlook

Pros

-Culture, company values and mission are all tightly tied together -Leadership is communicative and open -People are kind and always willing to help each other out

Cons

-there is sometimes ambiguity due to high growth

5.0
Sep 10, 2019
Recommend
CEO approval
Business Outlook

Pros

Beloved brand and product. Smart and professional colleagues. Positive culture. A chance to build something in a nascent product vertical. Personal development opportunities galore.

Cons

A bit too high on our own supply. Need to be hungrier.

5.0
Sep 9, 2019
Recommend
CEO approval
Business Outlook

Pros

Supportive engineering culture. Good perks but not over the top and professional. Good work-life balance.

Cons

Rapid employee growth means a lot of people are new and few people seem to have in-depth knowledge. Development pace can feel a bit slow coming from a smaller company. Overly-cautious about unit tests and logging, while lacking in integration and system tests to prevent incidents.

Viewing 1024 - 1026 of 1,095 Reviews

Glassdoor has 1,227 Slack reviews submitted anonymously by Slack employees. Read employee reviews and ratings on Glassdoor to decide if Slack is right for you.