In a bowl, combine honey, soy sauce, rice vinegar, and cornstarch. Whisk to combine.
Pat shrimp dry and season with salt and pepper.
Heat 1 tablespoon of oil in a large skillet over medium-high heat. Add half of the shrimp and cook until pink, about 1-1.5 minutes per side. Remove and set aside.
Repeat with remaining shrimp and oil. Set aside.
Add remaining oil to the skillet. Add garlic, ginger, and red pepper flakes. Cook until fragrant, about 30 seconds.
Add the honey-soy mixture and cook, stirring, until thickened, 1-2 minutes.
Return shrimp to the skillet and add scallions. Toss to coat.