While self-titling your role allows for creative freedom, it also has the drawback of limiting you from future opportunities. Sure, being progressive and throwing in a “ninja” may sound cool, but honestly, you’re not sneaking into your prospects’ email inboxes and slashing unsubscribes with your katana. I’ve known several hiring managers that will pass up on a resume because it contains unnecessary lingo that lacks professionalism. Don’t do it. Instead, opt for Marketing/Finance/Sales “Professional”. Or “consultant”. While professionals or consultants might not have as many groupies as “rockstars” or as much business zen as a “guru”, they hold much more esteem with recruiters than the glorified descriptors.
Oh, and if you’re in operations, don’t go with “janitor”. While it sounds self-deprecating and charming, it inherently has the reverse effect because you’re the one who coined it. Besides, I hear they prefer to use the word “custodian”.