Software development is the process of conceiving, specifying, designing, programming, documenting, testing, and bug fixing involved in creating and maintaining applications, frameworks, or other software components. So the responsibilities of a Software Developer are : Researching, designing, implementing, and managing software programs Testing and evaluating new programs Identifying areas for modification in existing programs and subsequently developing these modifications Writing and implementing efficient code Determining operational practicality Developing quality assurance procedures Deploying software tools, processes, and metrics Maintaining and upgrading existing systems Working closely with other developers, UX designers, business and systems analysts