They're just saying the job market is hot in the location of the S (San) F (Francisco) B (Bay) A (Area) it's not cryptic, I'll assume you had a brain fart here it happens.

Unless I'm getting whooshed now lol, but yeah the market here is just super hot because all the AI money sloshing around.

For what it's worth I actually took "SFBA" and Googled it because I wasn't sure either. I've always heard of it referred to as SF or SV. Learn new stuff every day.