A Systems Engineer, also known as lead systems analyst, a network engineer who can also program, or a software engineer who can also manage networks, is an IT professional who oversees the creation of hybrid software, web and hardware products from initial specifications to final rollout and maintenance. These products are often sophisticated systems that run on the web. The systems engineer is responsible to integrate various network operating systems, application programs and hardware devices. Duties of a systems engineer typically include managing the development cycle associated with producing a resilient software, hardware and web application, including specification, design, coding, testing and maintenance. Systems engineering is like putting together a puzzle, matching varied pieces together to make one cohesive whole. Systems engineers are concerned with the "big picture" of a project in addition to technical aspects and must consider details like cost, schedules and social issues that may be associated with a project.