Seit wann arbeiten Sie ~? – “Since when have you been working ___?” in German | MotiTan Dictionary

Meaning

Since when have you been working ___?

When to use it

It asks when work began. Use it politely at work to ask about a person's start date.

Example dialogue

Seit wann arbeiten Sie in dieser Abteilung?

Since when have you been working in this department?

Ich arbeite hier seit letztem Monat.

I have been working here since last month.