I’ve got ~16 years experience and I’m starting a new role tomorrow. I’ve been looking on and off for a while. I’ve had a lot of recruiters contact me, mostly for contract or roles I wasn’t very interested in (Fintech, healthcare tech, shopping).
I had a significant change in response (positively) when I started crafting my resume for roles I wanted. Between the recruiters and the candidate matching systems, a non-response seems more to be a we-never-saw-your-resume than intentional weed out.
To answer your first question though, I’d say the market is unequivocally better for Senior developers than for Junior devs.