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 Tecnologías de la información industry (3.9 stars).

Reviews by job title

1K reviews
4.0
Nov 12, 2018

External Perception Outpacing Reality

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

• Extremely strong, once-in-a-lifetime business. From a market perspective, there's no reason Slack can't be the next MSFT/Salesforce. MSFT presents some competition in the space, but it's Slack's market to lose. You definitely have job security here. • Compensation and perks are great. Fitness reimbursement, education, phone data, etc. You'll save a lot of money by working here. Office spaces are luxurious and thoughtfully designed. • You get to work on a product (many!) people actually use and care about • There are some truly extraordinary people working here that are a pleasure to work with and learn from. • Stewart is as "unique" and inspiring as he seems from the outside. Some other executives are the same way. • Slack is no longer a startup so it's less likely you'll need to work startup hours (e.g. 9a - 5p will swing it for most roles) • The bar for tech companies is lower than sea level, but Slack is still above it. From a total package perspective, there are few opportunities as good as this in Silicon Valley, even despite its many flaws.

Cons

• Despite Slack's diversity PR, some women and minorities still experience horrible things/sexism/lesser treatment there just like any other tech company. There's more than one case of a perpetrator not only not being punished because of incidents but being promoted. Internal surveys continually reflect the dissatisfaction from URMs and virtually nothing is done. It feels awful when the company is telling a story externally that is divorced from the realities many employees experience internally. • Senior leadership is extremely hit or miss. You're as likely to find inspiring leaders as you are to find people solely focused on building their personal brand/driving readership to their blog instead of doing any real work. • There are management chains completely devoid of accountability, where a bad manager reports to and is close with a bad manager who reports to and is close with a bad manager… This is as demoralizing for direct reports/peer managers as it sounds. • Your Slack experience is highly dependent on which department/team you're a part of e.g. someone in CE or Design is much more likely to report having a far better experience than someone in Marketing or Product, but it also varies highly from team to team within each department. Do your due diligence on the team you're joining. • The monolith of a codebase has finally caught up to product/engineering. Everyone's heard about the recent weeks' long code freeze but development velocity has indeed slowed to a snail's pace. With more and more large enterprise customers coming in, a rumored IPO, etc, it's unlikely this will turn around in any substantial way. This is extremely tough if you work in Product/Design/Engineering. • Slack's culture is "too nice" — people tend to be passive-aggressive and avoid difficult conversations/feedback. Poor performers who make it past 3-6 months are almost never managed out. The foundational values of the company like Empathy/Courtesy were well-intentioned but not fully thought out and the consequences can be felt now. • The reward for doing well is typically being driven to burnout — many high performing employees are barely making it to their 2 or 3 year marks, let alone 4 years or beyond.

1.0
Apr 14, 2020

Not the same company it was years ago

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Great office, barista, great benefits and perks. If it wasnt for my stocks I would have left by now.

Cons

HR is political. They have no idea what they are doing and not helping employees at all. IT department is political. They each bring people from their previous companies, and leaving tenured employees out to dry. Young, unexperienced, 2 years in IT kids are getting promoted to managers simply because they are good at sucking up and throwing people under the bus. You can work day in and night, if you didnt know your manager from another company, or if you are really giving them honest feedback you will get bad performance ratings and they will not promote you on purpose. People that were previously interns are now managing a team of 5 with less than 2 years on the jobs when Master degree, 15 years of experience professionals are just analyst. This is a joke. Upper management is amazing and is trying to promote a culture that no-one on the lower management follows because they count everything you say against you.

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Slack Response
6y
Thank you so much for sharing your thoughts. We appreciate your candor and take all employee feedback seriously. We encourage employees to meet one on one with their managers, up their management chain or People Partners to share feedback regularly. If you are not comfortable going to your manager or People Partner, you can escalate this to me or Dawn Sharifan, VP of People. Alternatively, executives host office hours regularly and we encourage you to schedule time and share your feedback directly. Thank you again for providing this valuable feedback.
2.0
Apr 21, 2018

A great place to work if you are not in Marketing.

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Slack is a great product with a lot potential. Great customer base and sales team. There are some really smart and kind people through the organization. Not a workaholic culture with staff leaning older the culture feels a lot more mature. No beer, foosball or frat boy antics. Great compensation and benefits. Interesting problems to solve. Stills feel like a startup but that will probably change soon as there are signs that big company culture is on the way.

Cons

Slack has a serious culture problem especially in the marketing organization that just grinds people down to a pulp and discards them. Marketing leadership has been allowed to drive the morale down of the marketing team. The marketing organization is a hot bed of opaque transparency, silencing tactics, favoritism, unannounced informal demotions, bullying tactics including just deciding to stop inviting key people to meetings, silent treatment and coverups, poor operational procedure, lack of vision, lack of insight into decision making with with no oversight from our CEO. The culture amp survey scores for the entire org are in material decline, and there is a consistent show of sloppy vision from the top that keeps marketing operations in a state of confusion with constantly blown scopes and massively off track projects, thrashing and things changing every other week. Attrition is bad people who don't get bullied out of the organization are starting to leave on their own accord. The People Org has watched all of this go on and it continues to happen with seemingly very few alarm bells being rung . The morale of the marketing organization is in serious decline and many key figures have gone missing with very little explanation. Leadership has been allowed to run amuck and people are too paralyzed by unchecked power and are too fearful to disagree because they know the consequences—their careers. There is no recourse for you if you are a victim of leaderships quick disposal of you. Everyone in the organization sees this pattern and it is an open secret. The marketing organization has been tasked with a lot of meaningful company goals and the insecure, inhumane, bullying tactics are going to be the make or break in the entire team’s success. There are very talented people on the team and talented people have been forced out if they pose a threat or challenge leadership. Making a mistake can ruin your career. At the top of the organization is leadership is only about itself and its career aspirations and it does not care about who it has to step on, ruin or use to get there as long it keeps favor in our CEO's eyes.

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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.
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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.