Slack reviews

4.0

77% would recommend to a friend

(1,094 total reviews)
avatar

Stewart Butterfield

88% approve of CEO

70% positive business outlook

Slack has an employee rating of 4.0 out of 5 stars, based on 1,094 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
3.0
Nov 27, 2018
Recommend
CEO approval
Business Outlook

Pros

* Good work/life balance. Management seems to career about employees' wellness. Lots of fringe benefits including good Mat/Pat leave. * Company has a good name and is on a good trajectory. * Coworkers are pretty nice and mature.

Cons

* At least within Analytics, ICs are rarely promoted. Mid-managers come up with rubrics for judging advancement, but use vague definitions to make assessment fit their view. In two years, among fifteen colleagues, I've observed perhaps three IC promotions (manager class seems to promote itself) * In same vein, mid-management is reluctant to promote ICs to management, tend to hire from outside so nearly impossible to move up from IC to mgr * Fast growth issues: getting things out the door is focused on, so quick wins are praised and rewarded, while building scalable solutions is often overlooked. Result is a lot of tech debt and even basic data questions still take a long time to get answered. On an org level, code base is a behemoth and we've now finally been forced into clean-up mode because it's struggling to scale.

1.0
Nov 7, 2018

A company succeeding despite itself

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

There are some smart and friendly people in supporting roles at Slack

Cons

Slack is all hype but guaranteed to make some people wildly rich, so ¯\_(ツ)_/¯

1.0
Sep 9, 2019
Recommend
CEO approval
Business Outlook

Pros

Good product roadmap, positive future as a product. Slack is for sure the way of the future. Goodbye email.

Cons

Very homogeneous and minorities do not thrive in this environment. The HR team has no support nothing really set up to help underrepresented minorities be successful in this environment. No education around cultural or communication styles and no resources on biases or true bias trainings except for the usual "unconscious bias" jargon. POCs will very quickly become isolated and it's up to them to make others around them feel comfortable or else they will be sacrificed. I have watched this happen to POCs. Especially Black Women.

Viewing 31 - 33 of 1,094 Reviews

Glassdoor has 1,226 Slack reviews submitted anonymously by Slack employees. Read employee reviews and ratings on Glassdoor to decide if Slack is right for you.