1. Install, upgrade and monitor software and hardware.
2. They usually maintain the essentials such as operating systems, business applications, security tools, web-servers, email, PCs, local and wide area networking both hardware and software and mid-range server hardware.
3. Sysadmins are usually charged with installing, supporting, and maintaining servers or other computer systems, and planning for and responding to service outages and other problems.
4. Other duties may include scripting or light programming, project management for systems-related projects.
5. In charge of the computer systems – all the parts that make a computer function.
6. Responsible for the upkeep, configuration, and reliable operation of computer systems; especially multi-user computers, such as servers.
7. change security settings, install software and hardware, access all files on the computer, and make changes to other user accounts.
8. Installing and configuring software, hardware and networks.
9. Monitoring system performance and troubleshooting issues.
10. Ensuring security and efficiency of IT infrastructure.