Bring a small pot of water to a boil, gently lower the egg in, and simmer for 6.5 minutes before transferring to an ice bath.
Cook soba noodles according to package directions, drain, and set aside.
Heat sesame oil in a pot over medium-high heat and sear the thinly sliced pork strips with sea salt and black pepper until golden brown.
Add minced garlic, grated ginger, and sliced mushrooms to the pot, sautéing for 2 minutes until fragrant.
Pour in the chicken broth, tamari, and sriracha, bringing the liquid to a gentle simmer.
Stir in the chopped bok choy and cook for 2 minutes until the greens are wilted but still vibrant.
Divide the noodles into a bowl, pour the spicy broth and pork over them, and top with the peeled, halved jammy egg and sliced green onions.