Preheat the grill pan over medium-high heat. Brush the corn with olive oil and sprinkle with 1 tablespoon of the everything but the alote.
Grill for 2 minutes per side, or until char marks form. Remove the corn from the grill and set aside.
In a large bowl, combine the mayo, garlic, lime zest and juice. Set aside.
Slice the kernels off the corn and place in a large mixing bowl. Add the scallions, cotija, cilantro, and jalapeno. Pour the dressing over top of the salad mixture and toss to combine.