p>Keywords: Systems Administrator, System Administrator, Windows Administrator, Linux Administrator, Windows Server, Linux, Red Hat, Ubuntu, CentOS, Active Directory, VMware, vSphere, ESXi, Hyper-V, Virtualization, PowerShell, Bash, Python, Automation, Scripting, TCP/IP, DNS, DHCP, VPN, Networking, Infrastructure Support, Server Administration, Systems Engineering, Firewalls, Intrusion Detection Systems, IDS, Cybersecurity, Vulnerability Management, Patch Management, Backup and Recovery, Disaster Recovery, Security+, Security Plus, SecurityX, CASP+, DoD 8140, IAT Level II, Secret Clearance, Technical Support, Enterprise Infrastructure, IT Operations, Network Administration, Systems Monitoring, Performance Tuning, Troubleshooting, Information Technology. The Systems Administrator will be responsible for maintaining and optimizing critical infrastructure, supporting Windows and Linux systems, administering network services, and implementing security best practices across the environment.