Thaw shrimp completely if frozen. Pat completely dry with paper towels.
Whisk honey, lime juice, lime zest, garlic, soy sauce, and chili flakes together in a small bowl until honey dissolves. Set aside.
Season shrimp on both sides with salt, pepper, smoked paprika, and garlic powder.
Heat oil in a large skillet over high heat until shimmering and just beginning to smoke.
Add shrimp in a single layer. Do not crowd. Cook in batches if needed.
Cook 1–2 minutes without moving until undersides are pink and golden at the edges.
Flip every shrimp. Cook 60–90 seconds until pink all over and curled into a loose C shape.
Reduce heat to medium. Pour glaze over the shrimp. Toss for 30–60 seconds until coated and glaze reduces slightly.
Add butter. Toss once more until glaze is glossy. Remove from heat immediately.
Serve immediately over rice, noodles, or in tortillas. Top with cilantro, spring onions, lime wedge, and sesame seeds.