Preheat oven to 350 degrees F.
Season salmon with salt and pepper, sear skin side down in pan with olive oil. Finish in oven to desired doneness.
Deglaze the same pan that cooked the salmon with orange juice and soy sauce. Bring it to a simmer and reduce orange juice by half to a syrup consistency.
Plate salmon and noodles. Add orange glaze over salmon and soba noodles. Garnish with scallions.