01 - Prepare pasta according to package directions until al dente. Drain thoroughly and rinse under cold running water to stop cooking and cool completely. Set aside.
02 - If using fresh corn kernels, heat a skillet over medium-high heat and add corn. Cook, stirring occasionally, until lightly charred and browned, approximately 5 minutes. Remove from heat and let cool completely.
03 - In a large mixing bowl, add the cooled pasta, charred corn, diced red onion, red bell pepper, jalapeño, and chopped cilantro. Toss gently to distribute evenly.
04 - In a separate bowl, 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 the prepared dressing over the pasta and vegetable mixture. Toss thoroughly until all ingredients are evenly coated with the creamy dressing.
06 - Gently fold in all but 2 tablespoons of the crumbled cotija or feta cheese, being careful not to break up the pasta.
07 - Transfer the salad to a serving platter or bowl. Sprinkle the 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.