For the marinade: To a bowl, add your soy sauce, rice wine vinegar, oil, sambal, scallion whites, garlic and ginger. Stir to combine. Add the shrimp to the marinade, toss and set aside.
For the edamame-goat cheese puree: To the bowl of a food processor, add in your edamame, goat cheese, lemon zest and juice and salt to taste. Process to thoroughly combine. Taste and adjust seasonings as needed.
Preheat a grill on high. Dip a paper towel in some oil and rub down your grill to create a nonstick surface.
Remove the shrimp from the marinade, shake dry and place onto the grill. Cook until slightly charred and pink on the outside, 2 to 3 minutes on each side. Remove the shrimp from the grill and set aside to cool slightly. Slice in half lengthwise and set aside until ready to plate.
Grill the bread on both sides until grill marks form, 2 to 3 minutes on each side. Remove the bread from the grill and rub with the whole garlic cloves. Spread about 1 tablespoon of the edamame-goat cheese spread on each crostino. Top with 2 pieces of the shrimp. Garnish with the green portion of the scallions and serve.