In a small bowl, whisk together mayonnaise, lime juice, chipotle powder, garlic powder, salt, and pepper until smooth.

In a large mixing bowl, combine roasted corn, black beans, avocado, cilantro, red onion, and jalapeño. Gently stir to combine.

Pour the dressing over the salad mixture and carefully fold to coat everything well without smashing the avocado.

Taste and adjust seasoning as necessary, adding more lime juice or chipotle powder if desired.

Cover and refrigerate for about 30 minutes to allow flavors to meld, if desired.

Before serving, give the salad a gentle stir and serve in a bowl or individual portions, garnished with extra cilantro or cotija.