Sorry but it seems you have a naive view of large companies :-) They are giant spendthrifts, are bogged down in tons of bureaucracy, and overload developers at 1.5–2x allocation. With these conditions, you'll be lucky if you can get the compute capacity you need to run critical services. Oh, and also if some architect doesn't come around and instruct you to write everything in NodeJS 'because we can backfill NodeJS devs easily'.