Yes, you must have a job offer from an Italian employer before applying for an Italy work visa. The employer in Italy must first request a work permit (Nulla Osta) on your behalf from the local immigration office. Once the permit is approved, you can apply for the Italy long-stay work visa (D-visa) at the nearest Italian embassy or consulate. Without a confirmed job offer, your visa application cannot be processed, as the work permit is directly linked to your specific job and employer in Italy.