In a small bowl, whisk both soy sauces with the vinegar and <em>sambal oelek</em>. In a large nonstick skillet, heat the 1 tablespoon of oil until shimmering. Add the chicken and cook over moderately high heat until lightly golden, about 5 minutes. Add the onion, carrot, celery, jicama, ginger and garlic and stir-fry until the vegetables just begin to soften, about 4 minutes. Add the soy mixture and cook, stirring, until most of the liquid has evaporated, about 5 minutes. Season with salt and pepper and keep warm.