A developer is the key individual behind all software applications. They are the one who develops what UI designers design. After development, design becomes interactive. Adding life to the UI design is done by our developers. Development might be prototype development or real application development based on the prototype. This team gives life and logic to the design. They are the one who has fully understood your business logic that needs to be in the application. They are in charge of the entire development process for a software program.
In a team if you see someone very serious biting nails and thinking deeply as if some dot or semicolon is missing in the large paragraph, this is developer for sure.