Prepare the sauce by whisking together the mayonnaise, chopped kimchi, and sriracha in a small bowl; refrigerate until serving.
Heat a large skillet over medium-high heat and add the ground beef, cooking until browned and fully cooked.
Drain the excess grease from the pan, then stir in the minced garlic and grated ginger, cooking for 60 seconds.
Add the soy sauce, brown sugar, and sesame oil to the skillet, stirring to combine and simmering for 3 minutes until the sauce thickens.
Divide the cooked jasmine rice into four serving bowls.
Layer the bulgogi beef, carrots, and cucumbers over the rice.
Drizzle with the prepared kimchi sauce and garnish with green onions and sesame seeds.