Slack reviews

4.0

77% would recommend to a friend

(1,095 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 1,095 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
2.0
Jan 14, 2020
Recommend
CEO approval
Business Outlook

Pros

Slack has a beautiful office in SF which is one of the most wonderful offices I have worked at Aesthetically. Good Co-workers who are nice and work together collaboratively

Cons

Everything else especially Management. The Management is very traditional, and has low diversity although Slack stresses on being a very diverse culture and tries to portray this via Social Media or Articles however internally that's not very true. There are no Managers who I can relate to who, like other Unicorn startups are less traditional, new generation, energetic and diverse. I also wish we had a more Front End specific Managers because most Managers here are not very good at Front End Engineering which causes discussion gaps between Engineers and Managers.

2.0
Dec 11, 2019

Horrible data organization

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Perks are great. Building is beautiful. Slack, as a product, is useful.

Cons

Data org has no strategy or vision. Most engineering managers don't care about their team members. The very few who do aren't supported by the senior leadership. No focus on engineering quality and the happiness of the engineers. VPs and directors overpromise to the execs. They get upset when their unreasonable demands aren't met. Horrendous amount of cross department politics. Constant on-call issues and pages. Small teams supporting large number of projects and constantly struggling to keep up. No appreciation or recognition of th good work. CTO belittles the data org when things go wrong. He seems unhappy with the team, but does nothing to understand and correct any issues. I can keep going but hopefully you got the idea!

3.0
Dec 11, 2019
Recommend
CEO approval
Business Outlook

Pros

Slack has a beautiful office in San Francisco. Almost everyone there is very nice and wants to see you succeed. The perks are nice, especially the weekly massages.

Cons

I had 3 managers (4 if you count the time I had no manager) over ~6 months. The whiplash was disorienting and I couldn't focus or get my work done. My original manager was amazing, his replacement was bad (overcommitted, late to everything, bad listener) to the point that I quit. I miss my teammates but I don't miss him. Additionally, when I was leaving, I found that multiple coworkers had tried to transfer out to other teams at Slack and had been denied by the director of our department. IMO, that's unacceptable. The pay isn't great - relatively low base pay for a company their size plus a yearly bonus that the finance department threatens to take away at every all hands.

Viewing 844 - 846 of 1,095 Reviews

Glassdoor has 1,227 Slack reviews submitted anonymously by Slack employees. Read employee reviews and ratings on Glassdoor to decide if Slack is right for you.