System Administration: Manage and maintain company IT systems, including servers, network infrastructure, and hardware.  Network Management: Ensure the smooth functioning of the company's local area network (LAN), wide area network (WAN), and other communication systems.  Troubleshooting: Identify, diagnose, and resolve technical issues in a timely and efficient manner.  User Support: Provide support to employees for hardware, software, and network-related issues. Address and resolve technical inquiries in a professional manner.  Security Management: Ensure that all systems are secure and up to date with the latest security patches and antivirus software.