Cut the boneless chicken thighs into large 1-inch pieces and pat dry.
In a large mixing bowl, add the garlic powder, onion powder, paprika, mustard powder, dried oregano, curry powder, salt, black pepper, extra virgin olive oil, and lemon juice.
Stir until the marinade forms a thick paste.
Add the chicken pieces and toss until fully coated.
Cover and refrigerate for at least 30 minutes, or up to 8 hours for deeper flavor.
Thread the marinated chicken pieces onto skewers.
Heat 3 to 4 tablespoons olive oil in a large skillet or grill pan over medium-high heat.
Add the skewers and cook for 10 to 14 minutes total, turning every few minutes, until browned and lightly charred on all sides.
Check that the chicken reaches 165°F (74°C) in the thickest pieces.
Transfer the skewers to a serving plate and rest for 5 minutes.
Serve with pita, shredded lettuce, tomato slices, red onion, lemon wedges, rice, and sauce of choice.