Learn Italian: Lavora da impiegato, ma non è ancora felice. - He works as an employee, but he is not happy yet.

When expressing that someone is acting in a specific role, profession, or stage of life, Italian uses da to mean "in the capacity of." While come also translates to "as" or "like," it is used for comparisons. If you said lavora come un impiegato, it would imply he is working like an employee, perhaps working as hard as one, but isn't actually one.

Why is there no word for "an" in the phrase da impiegato?

When da is used to state a role or profession, you drop the article (such as un or l') completely. You simply use da immediately followed by the noun, just as you would say da bambino for "as a child."

The verb lavora can mean "he works" or "she works." How do we know it means "he" in this sentence?

The big clue is in the noun impiegato! Because it ends in -o, it specifically refers to a male employee. If we were talking about a woman, the sentence would be Lavora da impiegata, ma non è ancora felice, changing both the job title and the adjective to their feminine forms.

How does ancora work in this sentence? Doesn't it usually mean "still"?