Service Delivery Index: A Driver for Reliability
How a simple metric drives a reliability culture across the Slack engineering organization
Real-time Messaging
Did you know that ground stations transmit signals to satellites 22,236 miles above the equator in geostationary orbits, and that those signals are th…
Tracing Notifications
Notifications are a key aspect of the Slack user experience. Users rely on timely notifications of mentions and DMs to keep on top of important inform…
Technology Lifecycle
Managing Expectations for Infrastructure Projects
Hakana: Taking Hack Seriously
TL; DR: We’re announcing a new open source type checker for Hack, called Hakana.
Slack launched in 2014, built with a lot of love and also a lo…
It’s a non-transitive R class world
After Duplo modularization, we noticed that the task producing a transitive R class was taking a significant amount of time to execute. To eliminate t…
What We Learned from Building GovSlack
Let's talk about the challenges we faced and the experiences we gained when we built the infrastructure to run Slack on AWS GovCloud (US)
How We Use Terraform At Slack
A Look Into Ways We Use Terraform to Build Our Infrastructure