Season the Shrimp: Pat the shrimp dry to help them crisp up. Season with ½ teaspoon salt, black pepper, garlic powder, onion powder, and paprika. In a separate bowl, whisk the cornstarch with the remaining ½ teaspoon salt.
Coat and Prep: Lightly coat the shrimp in the cornstarch mixture and shake off any excess. Set them on a plate while you heat the oil.
Fry Until Crispy: Heat about 2 inches of vegetable oil in a large pan over medium-high heat. Fry shrimp in small batches for about 2–3 minutes per side, or until golden brown and crunchy. Transfer to a paper towel-lined plate.
Make the Bang Bang Sauce: Whisk together mayonnaise, sweet chili sauce, and sriracha. Adjust spice level to your taste.
Sauce the Shrimp: Add the fried shrimp to a large bowl and gently toss with the sauce, saving a little extra for drizzling over the bowls.
Assemble the Bowls: Start with a warm bed of rice, then arrange edamame, cucumbers, shredded carrots, and purple cabbage on top. Add the sauced shrimp, drizzle with extra sauce, and finish with green onion and sesame seeds if you like a little crunch on top.