Bring a large pot of salted water to a boil and cook the linguine according to package directions until al dente.
While the pasta cooks, peel and devein the shrimp, then pat them completely dry with a paper towel and season with sea salt and black pepper.
In a large skillet over medium heat, add the ghee and olive oil.
Add the minced garlic and red pepper flakes to the skillet, sautéing for 1 minute until the garlic is fragrant but not browned.
Increase the heat to medium-high and add the shrimp in a single layer, cooking for 2 minutes per side until pink and opaque.
Reserve 2 tablespoons of the pasta cooking water, then drain the linguine.
Add the cooked linguine, reserved pasta water, and lemon juice to the skillet with the shrimp.
Toss everything together for 1 minute to emulsify the sauce and coat the pasta.
Remove from heat, garnish with freshly chopped parsley, and serve immediately.