Client Tracing: Understanding Mobile and Desktop Application Performance at Scale
A customer writes in and says the dreaded words: “My app is slow”. Here we go…
Performance problems can be a real struggle to track down, especial…
Migrating Millions of Concurrent Websockets to Envoy
Slack has a global customer base, with millions of simultaneously connected users at peak times. Most of the communication between users involves send…
Shadow Jobs
Test pre-release versions of the tools you rely upon through CI.
Slack’s Outage on January 4th 2021
Slack’s Outage on January 4th 2021
Women in Security at Slack
Since its inception, Slack has fostered a culture of inclusion and diversity. The Security organization at Slack is a prime example of how women can t…
A Day in the Life of a Backend Platform Engineer at Slack Pune
5:25 am
First alarm rings. *Snooze.*
6:30 am
The final alarm rings and I know this is the last one, so I get up and immediately start making my bed…
Scaling Datastores at Slack with Vitess
From the very beginning of Slack, MySQL was used as the storage engine for all our data. Slack operated MySQL servers in an active-active configuratio…