fauxfessional

noun, one who pretends to know it all at work and criticizes others when in truth, they are the one that sucks.

Sue talks smack about everyone else in the office but she is a fauxfessional. She can't even do her job well.

Fauxfessional

1. An imitator or poser of a professional service provider or legitimate business.
2. Possibly known to you, recommended by someone you know or found operating on social media.

I can't believe how badly our wedding photos came out because we hired a fauxfessional!