Love your attitude. I'm of the opinion that grinding through leetcode/hacker rank type exercises does improve your coding skills so I have no issue brushing up every time I'm on the market.

To that end, I'm 43 and last on the market a few months back, accepted an offer within a week of looking, had 3 pending final/onsites (including Amazon Seattle) and at least another half dozen in earlier stages that I shut down.

I do nothing to hide my age on my resume. Since turning 40 I've been on the market 3 times now, each time interviewing w/ 10-20 companies, and only once did I get the sense that agism was at play.