Preheat your oven to 400°F (200°C). Line a baking dish with aluminum foil for easy cleanup.
In a large bowl, whisk together pineapple juice, soy sauce, olive oil, brown sugar, jerk seasoning, garlic powder, onion powder, black pepper, salt, and cayenne pepper until well combined.
Add the chicken thighs to the marinade, ensuring they are well coated. Cover and refrigerate for at least 1 hour, or preferably overnight for maximum flavor.
Remove the chicken from the marinade and place it in the prepared baking dish. Pour the remaining marinade over the chicken.
Scatter the fresh pineapple chunks around the chicken in the baking dish.
Bake in the preheated oven for 35-45 minutes, or until the chicken reaches an internal temperature of 165°F (74°C) and the skin is crispy.
Remove from the oven and let it rest for 5 minutes before serving. Garnish with chopped green onions.