Bring a pot of water to boil. Cook the pasta in the boiling water according to package instructions. Drain, but SAVE 1 cup of the pasta water and set it aside.
In a large skillet over medium-heat, combine 2 tablespoons of butter and 2 tablespoons of oil. Add shallots, garlic and red pepper flakes. Cook 3 or 4 minutes, until the shallots are softened. Add shrimp to the skillet too, and sprinkle salt and pepper on top. Cook until the shrimp are pink and starting to curl (2 to 3 minutes). Remove the shrimp from the skillet, and wrap in foil to keep warm.
Add the wine to the skillet, along with ¾ cup of the pasta water. Bring to a boil, and scrape the bits off the bottom of the pan with a wooden spoon. Add remaining 2 tablespoons each of butter and oil to the pan. Bring to a simmer. Add the cooked pasta, shrimp, parsley and lemon juice to the pan. Toss to coat. Season with salt and pepper, to taste.
Plate individual servings. Sprinkle 1 tablespoon of Parmesan cheese on top of each.