What is Computer Science Engineering? Computer programmes have all but infiltrated every aspect of our lives. Computer scientists theorise, design, develop, and apply the software and hardware for the programmes we use day in day out – sounds pretty important to us.Every industry uses computers so naturally computer scientists can work in any industry. Problems in science, engineering, health care, and so many other areas can be solved by computers. It's up to the computer scientist to figure out how, and design the software to apply the solution.