Home » Working Women » Careers - Media, Advt, Graphics » Train to become a System Administrator A System Administrator is a person who takes care of all the computer systems. Installation of software, taking regular backups, virus protection, firewall implementation and maintenance of heterogeneous multi-user operating systems, is what the job entails. The Systems Administrator is responsible for all the user accounts, profile creation and maintenance, user authentication in terms of password protection, auditing and logging, and troubleshooting. In short, he takes charge of all the system-related functions.