01 - In a medium bowl, whisk together olive oil, lemon juice, lemon zest, minced garlic, oregano, red pepper flakes, salt, and black pepper until well combined.
02 - Add shrimp to marinade and toss to coat evenly. Cover and refrigerate for 10 to 15 minutes, avoiding extended marinating to prevent over-curing.
03 - Preheat grill or grill pan to medium-high heat. If using wooden skewers, submerge in water for at least 20 minutes.
04 - Arrange marinated shrimp onto skewers with 4 to 5 shrimp per skewer.
05 - Grill skewers for 2 to 3 minutes per side until shrimp turn pink, become opaque, and develop light char marks.
06 - Transfer to serving platter, garnish with fresh parsley, and serve immediately with lemon wedges.