Soak the codfish overnight in water, changing the water 3 or 4 times.
In a medium pot, with enough water to cover the salted codfish, cook for about 15 minutes. Strain and remove any bones, and let cool. Set aside.
In a large sauce pan warm the olive oil, saute onion, scallions, red bell pepper, tomato and garlic until the vegetables are soft. Season with salt and pepper.
In a medium bowl place the beaten egg, flour, and salt in a bowl. Add codfish, cumin and achiote. Shape into patties and fry them in a skillet with vegetable oil for about 2 to 3 minutes per side or until golden brown.