Your responsibilities as a network professional, also known as a computer networking engineer or administrator, focus on working with computer programs, software, and hardware to improve and simplify a computer network. Your job requires you to configure software and hardware to work optimally together, troubleshoot current and potential network issues, conduct routine maintenance on a computer network, and repair current networking problems. Your duties may also focus on improving and maintaining security for an organization’s computer network. Network professionals can obtain an entry-level position under the supervision of a senior network engineer with certification.