In a medium sized bowl, combine shrimp, 1.5 tablespoons of jerk seasoning, paprika, and oil. Place in the fridge and allow to marinate for 30 minutes.
Cook pasta according to the packaging instructions, reserving ½ cup of pasta water before draining the rest to use in the sauce.
While the pasta is cooking, heat remaining oil in a large skillet over medium heat. Add marinated shrimp, and cook through, about 3 minutes per side.
Remove shrimp from the pan and set on a plate to the side.
To the same pan, add butter.
Add sliced bell peppers. Saute for 2-3 minutes before adding in the diced jalapeno and cooking 1 additional minute.
Add green onions and stir to wilt.
Add chicken stock to deglaze the pan and scrap up anything stuck to the bottom.
Reduce heat to low and add heavy cream and parmesan cheese and stir. Simmer for 5 minutes to reduce and allow sauce to thicken. Add pasta water, a little bit at a time, if needed.
Add cooked pasta and stir to coat.
Add shrimp back to the pan and serve.