The range of duties is broad and varies depending on the post, but may include the following but not be limited to: Develop preventive maintenance procedures to avoid system failures. Set user access rights and permissions for security using Active Directory Infrastructure Create VPN accounts for users. Monitor performance and maintain software and security peripherals. Take regular back-ups of server files and maintain disaster recovery operations. Ensure security and efficiency of IT infrastructure Upgrade systems with new releases and models for security Perform repairs and replacements of security fundamentals. Provide assistance to other administrators when requested. Perform failure analysis and determine corrective action plans. Design, implement, and maintain security infrastructure such as firewalls, antivirus software, intrusion detection systems, VPN devices, and authentication systems Securing Windows Server and Linux OS. Install Network, Mobile Device and Computer Security Troubleshoot technical issues and escalate complex problems to appropriate support teams for resolutions. Plan and execute allotted work within deadlines and maintain records of daily tasks. Help authorized users avoid action that might compromise data availability, integrity, or privacy Prevent hackers from disabling computers or seeing, modifying, or destroying data on servers and media Perform vulnerability testing, and security assessments of technology infrastructure Monitor alerts and events and respond according to defined security processes Acquire threat intelligence to better understand and protect against threat actors