Combine beef, lime juice, orange juice, onion, cilantro, garlic, jalapeños, chilli flakes, cumin, paprika and salt in a large bowl. Mix well with your hands for about a minute, until the meat has combined with the other ingredients. Divide the meat mixture into 4 equal parts and firmly mould them into round patties about 1-inch thick. Drizzle a skillet or non stick pan with a small amount of oil; preheat pan over medium-high heat. When pan is hot, sear the burgers for 5 to 6 minutes on each side until cooked to your liking. In the last minute or two of cooking, add the sliced cheese over the patties and allow the cheese to melt.