Add lettuce, red pepper, orange pepper, cucumber, grape tomatoes, feta, scallion, red onion, and jalapeño (optional) to a large bowl.
In a separate small bowl, whisk together lime juice, sherry wine vinegar, chili powder, ½ cup olive oil, and salt and pepper to taste. Set aside.
In a skillet or pot, add 2 tablespoons olive oil, corn cut off the cob, and salt and pepper to taste. Sauté until just tender, about 4-5 minutes.
Add warm corn to salad, along with the whisked dressing. Toss and serve!
