Ask HN: Getting direct contacts for jobs I'm not qualified for

I have recently started putting my resume out and have updated and set my LinkedIn to actively looking just to see what's available. Since then, I have been getting a few legitimate in-house recruiters contacting me for Senior/Lead positions and it seems a bit puzzling (companies like Capital One).

I have about 2.5 years of actual industry experience, with half of that being in an internship. What is the appropriate response to being contacted for these positions? I don't think I'm a bad developer but I don't want to set unreasonable expectations.

Does anyone have experience or advice on what to do with recruiters like this?