It's important to note that in most cases, it's not the recruiter rejecting you, but the hiring manager. The recruiter collects some info, and passes you on to

It's important to note that in most cases, it's not the recruiter rejecting you, but the hiring manager. The recruiter collects some info, and passes you on to the hiring manager with their notes. The manager will decide who - out of everyone who has applied or been actively recruited - to interview. So most likely it's your resume and your competition that will keep you from getting interviewed. Your job is essentially to help the recruiter sell you to the hiring manager by pointing out how relevant your background is, because they really can't tell. And yes, it does vary quite a bit from company to company. The other thing that will get you an interview? Letting them know about other companies you're interviewing with and offers on the table.