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 Tecnologías de la información industry (3.9 stars).

Reviews by job title

1K reviews
5.0
Dec 6, 2018
Recommend
CEO approval
Business Outlook

Pros

Outstanding culture, peers are uniformly great people. Salary, benefits and management all excellent.

Cons

Competitive space, typical challenges associated with a fast growing company

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.

Viewing 955 - 957 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.