Cook the elbow macaroni in a large pot of salted boiling water until al dente, according to package instructions.
Drain the pasta and rinse under cold running water until completely cooled; set aside to drain thoroughly.
In a large mixing bowl, whisk together the softened cream cheese, mayonnaise, sour cream, jalapeño brine, garlic powder, onion powder, salt, and pepper until the texture is smooth and uniform.
Add the cooled macaroni to the dressing and fold until the pasta is evenly coated.
Incorporate the diced fresh jalapeños, pickled jalapeños, crumbled bacon, cheddar cheese cubes, and sliced green onions into the mixture.
Taste and adjust seasoning with additional salt or pepper if necessary.
Cover the bowl with plastic wrap and refrigerate for at least 1 hour to allow the flavors to meld and the dressing to set before serving.