Cook the pasta al dente according to package instructions. Drain and rinse under cold water to stop cooking.
Roast the corn:
Toss the corn with melted butter and Tajín, then roast it in a hot skillet or on a baking sheet under the broiler until charred and golden brown. Let cool slightly.
Mix the salad:
In a large bowl, combine the pasta, roasted corn, cotija, queso fresco, cilantro, red onion, jalapeño,
Make the dressing:
Whisk together mayo, lime juice,lime zest, hot sauce, honey, chili powder, smoked paprika, salt, and pepper, and garlic powder until smooth.
Combine & chill:
Toss the pasta mixture with the dressing until well-coated. Refrigerate for 20-30 minutes to let the flavors meld. For best results, chill for 2 hours.
Final touches:
Before serving, taste and adjust the seasoning.
Garnish with extra cotija, a sprinkle of Tajín, a squeeze of lime, and any crunchy add-ins.