In a medium bowl, whisk together soy sauce, gochujang, brown sugar, sesame oil, garlic, ginger, and rice vinegar until smooth.
Add the chicken pieces and toss to coat evenly.
Cover and refrigerate for at least 30 minutes or up to 4 hours.
Heat a large skillet over medium-high heat.
Add the marinated chicken in a single layer, working in batches if needed.
Cook for 3–4 minutes per side until fully cooked and caramelized.
Divide cooked rice among four serving bowls.
Top the rice with the cooked Korean BBQ Chicken Bowls mixture.
Arrange cucumber, carrots, edamame, and kimchi around the chicken.
Garnish with sesame seeds and sliced green onions.
Serve immediately and enjoy.