A laptop displaying an open Slack window is shown from a top-down view with a person's hands just visible on the keyboard. The Amazon logo is overlaid, partially transparent, on top of the image.
  • There's a word-of-mouth Slack channel used by Amazon employees on its performance-improvement plan.
  • Most employees post anonymously; one former worker likened it to a virtual support group.
  • Employees do not need permission to create Slack channels, an Amazon spokesperson said.

It wasn't the conversation the Amazon Web Services employee was expecting to have with her new manager. 

The employee, a tech-industry veteran, had been at the cloud company for more than a year. She'd received consistently positive feedback from her prior boss, who'd told her she was on track for a promotion.