Slack reviews

3.9

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 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
4.0
Feb 8, 2026
Recommend
CEO approval
Business Outlook

Pros

Front and second line management is fantastic. Pay and benefits are solid. Good work-life balance. Lots of opportunity for advancement/career exploration

Cons

Salesforce's aggressive sales tactics angere customers. Product vision and development has slowed and shifted in favor of Salesforce. Pricing structure makes it hard to sell. Salesforce is a hype machine that claims to be at the forefront of everything when it's not in many cases so you have to learn to step back and look at things with a critical eye. Prod

2.0
Mar 27, 2025
Recommend
CEO approval
Business Outlook

Pros

easy to get things done on monolithic architecture good direct teammates

Cons

no RSU refreshers that come anywhere close to the initial grant, don't expect to stay here longer than 4 years. very stagnant for your software engineering career, there aren't any interesting engineering problems to solve (which yeah, is a testament to how well slack's architecture works) 0 growth opportunity team handed off to 4 different managers in as many months salesforce influenced culture becoming very toxic

2.0
Mar 3, 2025

Toxic marketing department

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

- Amazing Salesforce benefits, including unlimited PTO - Smart colleagues - Cool product features

Cons

- The new leadership is not great and a lot of the truly talented employees have left - Lots and lots of pivots and political bottlenecks from multiple stakeholders, resulting in many projects stopping and starting - Challenging to get a promotion

Viewing 184 - 186 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.