Comment by smsm42

This has nothing to do with competence. Competence is not never making mistakes (if somebody tells you he never makes mistakes, it's actually more likely he's just incompetent enough to not notice them). Competence is arranging work in a way that mistakes don't result in a disaster. Which clearly wasn't the job of the junior dude, and very likely was the job of the CTO. I could easily count at least half-dozen ways in the situation was a total fail before the mistake happened. So no, one shouldn't be given free pass for mistakes. But one should expect mistakes to happen and deal with them as facts of life. As for killing whole prod database, anybody who have spent some good time in ops/devops/etc. has war stories like this. Dropping wrong instance, wiping wrong system, disabling network on wrong system... A lot of people been there and done that. If it didn't happen to you yet and you're in the line of work where it can - it will. It would feel awful too. But it'll pass and you'd be smarter for it.