Dice the chicken breast into bite-sized pieces and season evenly with sea salt and black pepper.
In a small bowl, whisk together the gochujang paste, tamari, minced garlic, and grated ginger to create a smooth glaze.
Heat a large non-stick skillet over medium-high heat and add half of the toasted sesame oil.
Add the chicken to the skillet and cook until golden brown and cooked through, approximately 5 to 7 minutes.
Pour the gochujang glaze over the chicken and toss continuously for 1 minute until the sauce becomes thick and sticky, then remove the chicken from the pan and set aside.
Wipe the skillet if necessary, add the remaining sesame oil, and sauté the chopped kimchi for 2 minutes until fragrant and slightly softened.
Stir in the cooked jasmine rice and press it down into the pan for 1 minute to allow the bottom to crisp slightly before mixing with the kimchi.
Divide the kimchi fried rice into a bowl, top with the glazed gochujang chicken, and garnish with thinly sliced scallions.