Saving 60 engineer hours a day

How I cut down 30+ minute builds to 2 minutes

Pinterest, at least until 2014, had one giant repository containing its web, API and a few other core services. In it existed a solitary tests/ directory which contained thousands of unit tests. Many of the tests were fast, but altogether it could take upwards of 30 minutes to run through the unit tests.

DadOps 24/7 and DevOps Consultant. Formerly @Pinterest and @Mozilla

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