Raj Smoove has never had a “real job.” No summers mowing lawns, no part-time gig stocking shelves over the holidays, no late-night restaurant shifts in the French Quarter. At age 14, he was hired by a classmate to spin records at a birthday party in the East. Today, he’s arguably the city’s busiest DJ.

But don’t just take my word for it. The man who Grammy-winning rapper Lil Wayne dubbed “The Greatest DJ in the World” b...