im a tenured engineer, spent a long time at faang. was casually beat this morning by a far superior design from an llm.
We get paid to solve problems, sometimes the solution is to know an existing pattern or open source implementation and use it. Aguably it usually is: we seldom have to invent new architectures, DSLs, protocols, or OSes from scratch, but even those are patterns one level up.
Whatever the AI is inside, doesn't matter: this was it solving a problem.