Slack reviews

4.0

77% would recommend to a friend

(1,095 total reviews)
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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 Information Technology industry (3.6 stars).

Reviews by job title

1K reviews
5.0
Oct 30, 2018

Values-Based Growth

Recommend
CEO approval
Business Outlook

Pros

I have never seen a company so dedicated to its values. I know, I know, every company has a list of values and principles and claims to live by them blah, blah. But at Slack, it isn’t really any list of values, so much as it is an implied way of being. If you are collaborative, respectful, put team first, find creative solutions, the. You will be more successful here. In some cultures, that simply isn’t true - over time you get sucked into the grimy, political necessities. I have seen it, fallen victim to it, and I am never going back. Working at Slack, I feel liberated to to my best work. Stuart is amazing. The hype is real. Finally, I work in Sales, which is often the most competitive dog-eat-dog side of a company. Not here. We win together or we don’t win at all. I know it sounds crazy, but come see for yourself.

Cons

Typical growth challenges. We use Slack for EVERYTHING at work and once in a while, there is a better way to get something done.

5.0
Oct 17, 2017
Recommend
CEO approval
Business Outlook

Pros

- The people are not only talented, but among the most thoughtful, inquisitive, and kind I've had the privilege of working with - There's True Belief in the product and its ability to change the way people work, backed up by customer testimonials - A support-focused culture that takes joy in delighting people in small ways: responding to tweets with a bug fix ready, a topical gif, etc. - Clever, pragmatic executives that are engaged and understand the product deeply - One of the most racially diverse tech companies in San Francisco; very liberal, with a social justice bent - Very little churn at the employee and executive levels

Cons

- In its race to become a Serious Enterprise Business, it's starting to lose some of the whimsy and quirkiness that got it to where it is. - Those acclimated to a data-driven, CS Fundamentals Engineering culture will find things a little lax here; pragmatism is the law of the land and some shortcuts have been taken. - Ratio of junior to senior engineers is higher here than elsewhere, resulting in ample stress for the senior engineers as they try to manage technical debt. For the juniors, the result is fewer opportunities for mentorship and a feeling of floundering without a life vest. - The "no whiteboards" interview policy is great, but sometimes translates to a "no technical challenges" interview depending on the panel, and that can (and has) lowered the bar.

5.0
Oct 19, 2020
Recommend
CEO approval
Business Outlook

Pros

Culture encourages people to naturally be themselves, it stopped being classified as work for me a long time ago and more of a place my brain goes to think about people collaborate. Work life balance is not just talked about but demonstrated here. Work hard and go home was painted on the wall of my office and it's respected and adhered to. I had a life event and my manager simply said, "go and do what you need to do, your family comes first".

Cons

It is a big responsibility to handle the collaboration of the size of customers we have, it is not necessary a negative but something to remember from time to time.

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Slack Response
5y
Thanks for your review! It’s great to hear that you feel work/life balance is a priority at Slack. The health and well-being of our employees is very important to us and we’re glad to hear that you feel supported. We hear you on the responsibility front and we’re thankful to you for taking it on! -Slack
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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.