Slack reviews

3.9

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 3.9 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
5.0
Oct 13, 2020
Recommend
CEO approval
Business Outlook

Pros

There's so much that I can write about how much I've enjoyed my time at Slack, but if I had to sum it up, it comes down to the power of the platform that we sell, and the brilliance of the people that I get to work with on a day-to-day basis. Culturally, you can't beat the employee experience. Our office is so close, regardless of the department you work in. From a career perspective, there's tons of opportunity. In my experience, our leadership team has always prioritized career growth, and I couldn't be more appreciative.

Cons

I really can't think of any. I only have the most incredible things to say.

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Slack Response
5y
Thank you for taking the time to write a review! We're happy to hear that you have a close-knit, collaborative team in Toronto. Wishing you well! -Slack
5.0
Oct 13, 2020
Recommend
CEO approval
Business Outlook

Pros

I feel like a lot of people on the outside have this idea of what Slack is like internally and they’re generally pretty spot on. It’s a group full of creative, smart, inclusive people trying to make the world a better place. I feel genuinely supported by Stewart and our executive team down to manager level and my teammates. Slack has handled remote work incredibly and has bent over backwards to make sure their employees are okay. I feel lucky to work at a place like this and am so excited about the future of work with Slack.

Cons

Like any company, Slack has disconnected systems within sales and marketing which makes projects difficult to run end to end. But we now have dedicated resources that are helping bridge the gap.

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Slack Response
5y
Hello! Thank you for the review. We love your point about our team of creative, smart, inclusive people. We will continue to lean in and provide you with the resources you need to be successful here. Thanks again! -Slack
5.0
Oct 13, 2020
Recommend
CEO approval
Business Outlook

Pros

I joined Slack after COVID-19 quarantine had already started, so my entire interview process, onboarding, and beyond has taken place remotely. While every company faces challenges due to this situation, I think Slack has handled it exceptionally well. I have felt very supported by the company and my peers in getting set up remotely, and I'm impressed by how quickly the entire company has adapted to working from home and continues to iterate on ways to make this work even better. As someone who used to have a long commute to the office every day, I appreciate that Slack is now allowing employees to work fully remotely in the future. In terms of the work, I feel that I've quickly ramped up on my team's work and have started making impactful contributions soon after joining. It feels like there's a lot of opportunity to take on responsibility and make meaningful contributions, while also being supported in prioritizing your own personal life and health.

Cons

I've struggled a lot with legacy code and learning PHP/Hack, which I didn't know prior to joining and have found difficult to work with. This can be frustrating for engineers who are used to working in more common languages which have more available resources online. The codebase also has some poorly documented / poorly tested areas which are difficult to understand and make changes to (these is mostly legacy code, as standards seem to have increased over time).

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Slack Response
5y
Hi there - thank you for sharing your onboarding experience. We're thrilled to hear that you've ramped up quickly and look forward to seeing what you accomplish here! Be well. -Slack
Viewing 679 - 681 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.