Pat the shrimp dry with paper towels. Transfer to a medium bowl, then drizzle with 1 Tablespoon olive oil, 2 cloves minced garlic, and 1/2 teaspoon salt. Set aside.
In a large skillet, heat the remaining 3 Tablespoons of olive oil over medium - medium high heat for 1-2 minutes.
Add the shrimp to the skillet and cook for 1-2 minutes on each side. Promptly remove the shrimp from the skillet to a clean bowl or plate (leave the oil in the skillet for the sauce.
Add the white wine, lemon juice, 3 cloves minced garlic, and red pepper flakes to the skillet with the olive oil. Bring to a boil, then reduce heat slightly and let cook until the sauce is reduced by half.
Add the butter to the sauce and reduce heat to medium. Once melted, add the shrimp back to the skillet and sauté until the internal temperature has reached 145°F and the shrimp are no longer pink (about 6 minutes).
Remove the scampi from the heat and garnish with fresh parsley and Parmesan cheese as desired. Enjoy as is or serve over your favorite pasta.