Preheat the oven to 425°F (220°C).
Pat the chicken thighs dry with paper towels to ensure crispy skin.
In a small bowl, combine garlic powder, onion powder, smoked paprika, dried thyme, dried rosemary, salt, and black pepper.
Rub the olive oil evenly over all sides of the chicken thighs.
Sprinkle the seasoning mixture evenly over the chicken thighs, rubbing it in gently to coat all sides.
Place the chicken thighs skin-side up on a baking sheet lined with parchment paper or a lightly greased baking dish.
Bake in the preheated oven for 35 to 40 minutes, or until the internal temperature reaches 165°F (74°C) and the skin is crispy and golden brown.
Remove from the oven and let the chicken rest for 5 minutes before serving.