Prepare the Cajun Seasoning: In a small bowl, combine smoked paprika, garlic powder, onion powder, thyme, oregano, cayenne, black pepper, salt, and cumin. Mix well.
Season the Shrimp: Pat shrimp dry with paper towels. Toss shrimp with Cajun seasoning until evenly coated.
Heat the Pan: Heat olive oil in a large skillet over medium-high heat until shimmering.
Cook the Shrimp: Add shrimp in a single layer, making sure not to overcrowd the pan. Cook 2–3 minutes per side until shrimp are opaque and blackened crust forms.
Garnish and Serve: Transfer shrimp bites to a serving plate. Sprinkle with fresh parsley and serve with lemon wedges.