I left FB in the early-mid 2010s and can attest to this. It took a year or so to adjust to the "real world." Things like, no, you don't have a fancy scheduler;

I left FB in the early-mid 2010s and can attest to this. It took a year or so to adjust to the "real world." Things like, no, you don't have a fancy scheduler; you get SSH, ansible, and systemd timers. Docker, Jenkins, and Kubernetes (RIP Mesos) were all new to me when other devs/devops folks had years of experience.