01 - Boil pasta according to package directions until al dente. Drain thoroughly and rinse under cold water to stop cooking and cool completely.
02 - If using fresh corn, heat skillet over medium-high heat and char corn kernels until lightly browned, about 5 minutes. Let cool completely.
03 - In a large mixing bowl, add cooled pasta, charred corn, diced red onion, red bell pepper, jalapeño, and chopped cilantro. Toss to distribute evenly.
04 - Whisk together mayonnaise, sour cream, lime juice, lime zest, chili powder, smoked paprika, cumin, hot sauce if desired, salt, and black pepper until smooth and fully incorporated.
05 - Pour dressing over pasta and vegetables. Toss thoroughly until all ingredients are evenly coated with the creamy mixture.
06 - Gently fold in most of the crumbled cotija or feta cheese, reserving a small portion for topping.
07 - Transfer to serving dish and sprinkle with remaining cheese. Refrigerate for at least 20 minutes to allow flavors to meld before serving.