Well, To do that. You must start off as freshman and wait a couple of weeks to rank up as member. Or, you must contact Zeus.

But to PM him, you must:
send a freeform application to him, including timezone, why do you want to become a Recruiter and average ingame activity. It's required maturity and patience:

And you must answer people's questions about recruiting (doesn't matter how obvious/dumb that question is.) You also have to understand how an applicant is from his application and give him an appropriate vote. Don't underestimate this job, requires a certain amount of skills .

So to basely answer your question, Yes you need to be a recruiter