Optimizing Our E2E Pipeline

In the world of DevOps and Developer Experience (DevXP), speed and efficiency can make a big difference on an engineer’s day-to-day tasks. Today, we’ll dive into how Slack’s DevXP team took some existing tools and used them to optimize an end-to-end (E2E) testing pipeline. This lowered build times and reduced redundant processes, saving both time…

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[Image: An example service build graph. It shows a set of Python files building into a backend artifact and a set of TypeScript files building into a frontend artifact.]

November 6, 2025

18 min read

Build better software to build software better

@David Reed

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[Original source](https://slack.engineering/speedup-e2e-testing/)