All Kind of customized web applications, Websites, E commerce Store.Systems developers create, maintain, audit and improve systems to meet particular needs, often as advised by a systems analyst or architect. They test both hard and software systems and diagnose and resolve system faults. The role also covers writing diagnostic programs and designing and writing code for operating systems and software to ensure efficiency. When required, they make recommendations for future developments. Depending on the type of organisation, developers can become either systems or applications specialists.