Consider security engineering. It requires constantly thinking about unconventional ways to attack systems, and taking advantage of common coding mistakes LLMs produce as often is humans because it learned from humans.

Security engineers will have jobs until software is perfectly secure... and that is going to be a while.

I do not use LLMs at all to do my job, and it is unlikely I ever would. Clients pay me -after- they had all their favorite LLMs take a pass.