Slack Software Developer reviews

4.6

99% would recommend to a friend

(60 total reviews)
avatar

Stewart Butterfield

99% approve of CEO

88% positive business outlook

Software Developer employees have rated Slack with 4.6 out of 5 stars, based on 60 company reviews on Glassdoor. This indicates that most Software Developer professionals have an excellent working experience there. Slack is rated in line with the average (within 1 standard deviation) by Software Developer professionals compared to other employers within the Informationstechnologie industry (3.9 stars).

Reviews by job title

60 reviews
5.0
Jun 24, 2020
Recommend
CEO approval
Business Outlook

Pros

I've been at Slack for 2 years and I feel very fulfilled. I really don't see myself leaving anytime soon within the next 5 years which is amazing given I'm part of Gen Z. I think the culture is what makes Slack stand out and while sometimes the workload does get intense and the diversity can be improved for people of color, I know Slack is doing its best and I appreciate it. - great culture - always shipping exciting features - feel very comfortable flagging issues to team and leadership - very clear direction and communication to employees - an appropriate level of big projects from time to time which pushes me to grow

Cons

- no Black or Latinx representation amongst principal engineers - no Black or Latinx representation in Slack leadership - salaries and leveling don't always look like they're fairly distributed

5.0
Jun 24, 2020

Slack is great!

Recommend
CEO approval
Business Outlook

Pros

Incredible, smart colleagues. Huge scale and people love the product.

Cons

Tough competitive landscape, but it's great motivation.

3.0
Jun 9, 2020
Recommend
CEO approval
Business Outlook

Pros

Beautiful HQ office (global pandemic notwithstanding), well-loved useful product, work/life balance is usually supported, strong culture of acceptance and inclusion (by a majority of ICs, at least), perks on par with comparable companies, codebase is receiving much-needed rewrites, CEO has a decent moral compass

Cons

The problem with a startup based on transparency that operates within its own “searchable log of all communication and knowledge” is that eventually, if successful, it grows up to be an enterprise company that has to admit that not everything should be found if searched for. This growth without corporate maturation has resulted in a massive communication and expectation rift, both between ICs and management as well as cross-functionally, and it fuels everything from the constructive feedback problem (everyone's afraid to give it for fear of seeming “not nice") to the product direction problem (roadmaps are slapped together and then changed if the OKRs they support start looking bad) to the reliability problem (tests are flaky and QA is understaffed) to the management problem (lots of middle managers are ineffective but aren’t supported or held accountable - until last year upwards 360 feedback cycles for management had been removed completely for over a year) to the leveling problem (many employees are brought in under-leveled, leading to a burst of work to be promoted and creating resentment and demoralization) to the hiring problem (C-suite, almost all recently and externally sourced to soothe stockholders, won’t concede outright that they want shiny FAANG resumes and not culture fit i.e. “Slackiness” anymore).

Viewing 40 - 42 of 60 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.