Heat the oil in a large pot over medium-high heat. Add the onion, carrots and red pepper, and season with salt and pepper. Cook, stirring occasionally, until the vegetables start to soften, about 5-7 minutes. Slide in the jalapeno, garlic, ginger, cumin, smoked paprika and cinnamon. Cook, stirring, until fragrant, about 1 minute. Add the sweet potatoes, and season with salt and pepper. Stir to fully coat the potatoes.