01 - Boil pasta according to package directions until al dente. Drain thoroughly and rinse under cold running water to stop cooking process. Set aside to cool completely.
02 - If using fresh corn kernels, heat a skillet over medium-high heat and char corn until lightly browned, approximately 5 minutes. Allow to cool. For frozen corn, thaw completely and pat dry.
03 - In a large mixing bowl, add cooled pasta, charred corn, diced red onion, bell pepper, jalapeño, and fresh cilantro. Toss gently to distribute ingredients evenly.
04 - Whisk together mayonnaise, sour cream, fresh lime juice, lime zest, chili powder, smoked paprika, ground cumin, and hot sauce if using. Season with salt and black pepper to taste. Whisk until completely smooth and creamy.
05 - Pour prepared dressing over pasta and vegetable mixture. Toss thoroughly until all ingredients are evenly coated with the creamy dressing.
06 - Gently fold in approximately three-quarters of the crumbled cotija or feta cheese, reserving remaining portion for garnish. Mix carefully to maintain cheese texture.
07 - Transfer salad to a serving bowl or platter. Sprinkle reserved cheese over the top along with additional fresh cilantro if desired. Refrigerate for at least 20 minutes before serving to allow flavors to meld.