Careerist

[Jason Yan]

How a [lazy] person refers to [somebody] with [a job].

[Ernesto]

Concerned mainly with advancement in one

[Zipporah Schumaker]

someone who thinks that their career is more important than anything else, and who will do anything to be successful in it

[Cami]

A person whose main concern is for professional advancement, especially one willing to achieve this by any means.