Cook pasta according to the package directions.
Meanwhile, season shrimp with 1/2 teaspoon salt and 1/4 teaspoon pepper. Heat oil in a large skillet over medium-high heat and cook the shrimp, turning once, for 2 minutes. Add jalapeño and cook for 1 minute.
Add the sauce and parsley and cook until heated through, 2 to 3 minutes. Serve over the pasta.