"What do you do here?"

Translation: Önök mit csinálnak itt?

[Daniel640094]

"Itt mit csinálsz" should be fine too, no?

[96314081311257]

Yes, it should be.

[Pedro771]

"Mit csinálsz itt?" sounds better

[tothadam06]

"What are you doing here?" would be a more accurate translation. "What do you do" mostly refers to occupation or recurring activity while "csinál" without any specific time usually refers to something done right now.