Here is an idea for getting useful responses back - give the candidate enough info to evaluate whether they are interested. This means info on the company, detailed description of the role, ballpark on the comp. You are even more likely to get a response if your email suggests you went as far as googling the candidate.
I truly don't understand why recruiters think "unspecified opportunity at top startup in technology industry, send me your resume since I'm too lazy to google it, I want a phone conversation" is actually useful.
I truly don't understand why recruiters think "unspecified opportunity at top startup in technology industry, send me your resume since I'm too lazy to google it, I want a phone conversation" is actually useful.