Preheat the broiler. Prepare the salmon seasoning by mixing the smoked paprika, brown sugar, salt, pepper, and orange zest in a medium-sized bowl.
Rub the seasoning on top of the salmon fillets, setting aside about ½ a teaspoon of seasoning for the sauce.
Place the rubbed salmon fillets on a large baking sheet. Broil the salmon for 10 minutes.
While the salmon broils, prepare the sauce by mixing the mayonnaise and the remainder of the salmon seasoning.
Start getting the slider buns ready by spreading the sauce on them.
Once the salmon is done in the oven, let it cool for just a few minutes and remove the skin. Place one salmon fillet on each of the slider buns with the seasoned mayo. and top with arugula.
