Learn Italian: Il direttore mi sceglie per il lavoro. - The manager chooses me for the job.

In Italian, direct object pronouns like mi (me), ti (you), ci (us), and vi (you all) almost always go before the conjugated verb. So instead of saying "chooses me" like in English, Italian phrases it as mi sceglie (literally "me chooses").

What is the dictionary form of the verb sceglie?

The infinitive (dictionary form) is scegliere (to choose). In this sentence, it is conjugated for the third person singular because il direttore (he) is doing the choosing. It's a regular -ere verb, but the gli sound can make it tricky to pronounce!

Does direttore mean "director" or "manager"?

It can mean both! Depending on the workplace, a direttore could be a company director, a film director, a school principal, or a store manager. In the context of someone hiring you for a job, "manager" is a very natural translation.

I remember lavoro meaning "I work". Why does it mean "the job" here?

Lavoro is a word that does double duty. It is the "I" form of the verb lavorare (to work), so io lavoro means "I work". However, it is also a masculine noun meaning "job" or "work". You can tell it's a noun here because it has the word "the" (il) right in front of it.