Slack reviews

4.0

77% would recommend to a friend

(1,094 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 1,094 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 Informationstechnologie industry (3.9 stars).

Reviews by job title

1K reviews
3.0
Jan 28, 2022
Recommend
CEO approval
Business Outlook

Pros

I reviewed Slack before the Salesforce acquisition and it was a glowing 5 stars so I'll just repeat what has remained after being a newly minted Salesforce employee for 6 months. - Work-life balance is still amazing - Benefits are great - Very impactful work depending on your project/team - More diverse than most tech companies

Cons

The culture has very much shifted and many engineers like myself feel more like a cog in a machine than ever before since the Salesforce acquisition. I can respect this model works for some as it depends on where you are in your life but as someone who wanted growth and challenge, you really need to make sure you're on the right engineering team at Slack that is doing the visible work. Because I felt like my growth had stagnated and that the bureaucracy of working at a big company was getting to me, I decided it was time to leave after several years of being at Slack. - very high turnover since the acquisition of Salesforce (mostly folks getting higher titles at startups) - dealing with Salesforce culture and bureaucracy (worse at D&I)

2.0
May 1, 2018

Marketers beware!

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Great, fun product that is beloved by customers Amazing talent on the ground. So many great minds. "Mature" startup with great perks Work/life balance

Cons

Lots of confusion, fake empowerment, meanness and secrecy. Competition within the marketing team, project stealing and disrespect of people's roles. Constant undermining to the point where even senior managers are informally demoted and cast aside. Overt favoritism, earned by being a yes man or woman and doing what you're told. The favorites can do ANYTHING they want, while others can do nothing right. Zero support from leadership. Inept, threatened, aggressive leadership with major imposter syndrome. There's nothing to learn from those in charge. In fact, be prepared to teach and then be punished for being "outspoken." Short-term thinking and planning resulting in missed opportunities. Hiring too many too fast, with overlapping responsibilities. Roles aren't defined well so it's hard to know who does what. Excited new hires are allowed to run with projects without including the right people. Before you know it, you've become redundant. HR has no power to help, as people are regularly complaining and inevitably leaving or being pushed out.

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Slack Response
8y
Thank you so much for sharing your thoughts with us. Although it’s disappointing to hear this has been your experience at Slack, we appreciate your candor and your perspective. We take all employee feedback seriously. Slack is a growing, dynamic organization focused on creating a great working environment with trust at its foundation. We encourage employees to meet one on one with their managers or People Partners to share feedback regularly. This type of assessment is incredibly valuable to us as we scale and we will work hard to improve. Thank you.
5.0
Jun 27, 2015
Recommend
CEO approval
Business Outlook

Pros

Solid leadership, actively working to create a sane and just work environment where the employees are respected as humans.

Cons

Rapid growth has created kinks in the chains of communication.

Viewing 13 - 15 of 1,094 Reviews

Glassdoor has 1,226 Slack reviews submitted anonymously by Slack employees. Read employee reviews and ratings on Glassdoor to decide if Slack is right for you.