Then, in 2004, I got a job at ThoughtWorks, a consultancy where my first gig was working on a project involving about seventy people. I was on a team of eight engineers whose full-time job was to deploy our software into a production-like environment. In the beginning, it was really stressful. But over a few months we went from manual deployments that took two weeks to an automated deployment that took one hour; we could roll forward and back in milliseconds using the blue-green deployment pattern during normal business hours.
