Yes, you bring your family if you have a valid job offer in the UAE. With a UAE work visa, you can usually bring your spouse and kids (under 21) to live with you. Most visa types let family members apply for dependent visas. If you make a good salary, your spouse can even apply for a work permit. Your kids can go to public schools, and your family can get healthcare benefits. When you're on the way to permanent residency, you can include your family in that application too.