Season the chicken cubes with half of the chili powder, smoked paprika, salt, and pepper.
Heat olive oil in a large skillet over medium-high heat and cook chicken until internal temperature reaches 165 degrees Fahrenheit, approximately 8-10 minutes. Remove and set aside.
In the same skillet, add the corn kernels and cook undisturbed for 2-3 minutes until charred, then toss and cook for another 2 minutes.
In a large mixing bowl, whisk together the Greek yogurt, light mayonnaise, lime juice, garlic powder, and the remaining chili powder and paprika.
Add the cooked chicken, charred corn, red onion, jalapeño, and cilantro to the dressing bowl.
Toss all ingredients until evenly coated.
Gently fold in the crumbled cotija cheese.
Serve immediately or refrigerate for up to 3 days.