Comfortable Place, Nice People. Not Great for Career Advancement - Data Scientist Slack Employee Review

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.

Explore other reviews about Slack

5.0
Mar 16, 2026
Recommend
CEO approval
Business Outlook

Pros

- high per-hour pay - 10k housing stipend

Cons

- no overtime pay (or you can, but most don't log it since hourly pay is already so high)

4.0
May 11, 2026
Recommend
CEO approval
Business Outlook

Pros

Great people, no micro management, good work/life balance

Cons

Limited opportunities, lots of hiring freezes, limited transparency in leadership decisions

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