01 - Bring a large pot of salted water to a boil. Cook the pasta according to package directions until al dente. Drain and rinse under cold water to stop the cooking process and cool completely. Set aside.
02 - While the pasta cooks, heat a large skillet over high heat. Spread the corn kernels in a single layer and cook without stirring for 2 to 4 minutes until charred on one side. Stir and continue cooking for about 2 more minutes until evenly charred. Remove from heat and let cool.
03 - In a large mixing bowl, whisk together the mayonnaise, sour cream, lime juice, minced garlic, chili powder, smoked paprika, kosher salt, and black pepper until smooth and well combined.
04 - Add the cooled pasta, charred corn, diced red onion, jalapeño, and chopped cilantro to the bowl with the dressing. Toss gently until all ingredients are evenly coated.
05 - Gently fold in the crumbled cotija cheese, taking care not to break it down too much.
06 - Taste the salad and adjust with additional salt or lime juice as needed to balance the flavors.
07 - Transfer to a serving platter. Garnish with extra crumbled cotija cheese, fresh cilantro leaves, and a sprinkle of chili powder or Tajín.
08 - Serve immediately at room temperature, or refrigerate for up to 6 hours before serving. Toss gently before serving if chilled.