Soak wooden skewers in water for 20 minutes to prevent burning during grilling.
Cut the pork loin into 1-inch cubes and set them aside in a medium mixing bowl.
In a small bowl, whisk together the gochujang, tamari, sesame oil, honey, grated ginger, and minced garlic.
Pour half of the gochujang marinade over the pork cubes and toss to coat evenly; let marinate for 15 minutes.
Thread the marinated pork cubes onto the soaked skewers, leaving a small amount of space between each piece.
Preheat a grill pan or outdoor grill to medium-high heat and lightly grease with a high-heat oil spray.
Grill the skewers for 3-4 minutes per side, brushing with the remaining sauce until the pork is charred and cooked through.
In a separate skillet, sauté the cauliflower rice with sea salt and black pepper over medium heat until tender, about 5 minutes.
In a small bowl, toss the thinly sliced cucumbers with rice vinegar until well coated.
Plate the skewers over the cauliflower rice and garnish with sesame seeds, serving the cucumber salad on the side.