Slack reviews

3.9

77% would recommend to a friend

(1,096 total reviews)
avatar

Stewart Butterfield

88% approve of CEO

70% positive business outlook

Slack has an employee rating of 3.9 out of 5 stars, based on 1,096 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 Information Technology industry (3.6 stars).

Reviews by job title

1K reviews
4.0
Sep 10, 2019
Recommend
CEO approval
Business Outlook

Pros

Great team dynamic and strong company culture Leadership has extensive experience and everyone seems to be aligned to the company mission

Cons

Less visibility with leadership No line of sight for plans with regional offices

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 901 - 903 of 1,096 Reviews

Glassdoor has 1,228 Slack reviews submitted anonymously by Slack employees. Read employee reviews and ratings on Glassdoor to decide if Slack is right for you.