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
5.0
Aug 2, 2019
Recommend
CEO approval
Business Outlook

Pros

The humans of Slack make it special. From day one you feel there's an energy about this place that isn't really easy to describe. You know that you're working on technology - but it's way more than that. I see this piece of technology making a positive, lasting impact on so many people's working lives. It's incredible to make that kind of impact on a macro scale, and we're just getting started! Additionally, I find work to be way more collaborative here. I don't dread checking my Slack the same way I used to dread checking emails. It's amazing how people really do work hard and go home as well! I love this place!

Cons

I think, like any new organization, there are a lot of process things that we're still working to iron out. The organization is totally open to hearing feedback on how to improve, though, so it makes implementing new solutions to issues easy!

5.0
Jul 30, 2019
Recommend
CEO approval
Business Outlook

Pros

An excellent product to work on, with a company that doesn't just value diversity but actually hires for it, and tons of opportunities to explore different areas of problem-solving at a rapidly growing company.

Cons

- The "nice" effect - some people shy away from giving honest, hard feedback, instead focusing on being perceived as 'nice' we're getting better, though. - The hiring process is a bit of a mess: from leveling to compensation ("we don't negotiate offers" - HA! Negotiate EVERYTHING, people), you'll have to negotiate the hiring waters carefully if you're lucky enough to be a part of this team.

4.0
Jul 29, 2019
Recommend
CEO approval
Business Outlook

Pros

- Challenging engineering initiatives. - Engineering focus on improving quality of product. - Good pay. - Upward business trajectory. - Company fosters employee career growth. - Fun, friendly, diverse culture.

Cons

- Automated tests low quality. - Slow compile times. - Lack of code documentation. - Low consistency across internal teams. - Lower bar for underrepresented minorities. - Extreme focus on being "PC".

Viewing 235 - 237 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.