Wash and slice the mini cucumbers into bite-sized rounds or diagonals.
Sprinkle them with salt and let sit for 5 minutes to draw out excess moisture.
Meanwhile, in a small bowl, mix soy sauce, rice vinegar, chili oil, minced garlic, sugar, and sesame oil.
Pat dry the cucumbers gently and discard any water released.
Toss cucumbers with the prepared dressing until evenly coated.
Garnish with sesame seeds and finely chopped green onions.
Chill for 10 minutes if desired, for better flavor absorption.
Serve immediately as a refreshing, spicy side.