Learn Italian: Hai un lavoro? - Do you have a job?

In Italian, you don't need a helping verb like 'do' to ask a question. You just use the normal statement and raise your voice at the end! Also, the pronoun 'you' is already built into the verb hai (you have). You could say Tu hai un lavoro?, but Italians usually drop the tu because the verb itself makes it perfectly clear who you are talking to.

How is hai pronounced? Is the 'h' silent?

Yes, the 'h' in Italian is always completely silent! You pronounce hai exactly like the English word 'eye'.

Does lavoro mean 'work' or 'job'?

It means both! Here, paired with the article un, un lavoro translates perfectly to 'a job'. The word lavoro is also used for the general concept of 'work' in Italian.