Google and to a lesser extent Facebook invest heavily in internal tools. IMO this is because they hire for the company, permit easy transferring, and programmer

Google and to a lesser extent Facebook invest heavily in internal tools. IMO this is because they hire for the company, permit easy transferring, and programmers sure love to scratch their own itch. Google has a tool where interviewers can provide feedback and a numerical rating for candidates. But it also has a whole data mining workflow: you can visualize an interviewer's past ratings on a histogram, compare their hire ratio against average hire ratios, etc. It's cool and interesting, and sees a lot more love than many of their user-facing products. Facebook has Bootcamp, their ~8 week onboarding process. There's a zoo of purpose-built tools just for Bootcamp, like the bot that sends you a question whose answer is written on the whiteboard just to confirm that you attended some Bootcamp class, or the Bootcamp Mentor rating machinery. Some of that is excessive but Apple's underinvestment sin is far worse. The SWE org learned to run lean during the dotcom bust, and never unlearned it. Radar is your lifeblood, make it best in the world! Please! Source: worked at all three!