> Markdown version of [/jobs/ext/4011790-systems-network-administrator](https://www.wearedevelopers.com/jobs/ext/4011790-systems-network-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems/Network Administrator - **Company:** Quadrant, Inc. - **Location:** Oklahoma City, OK, United States - **Experience:** Expert - **Salary:** $116,500.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, Bash Shell, Ubuntu (Operating System), CentOS, Dynamic Host Configuration Protocol, Linux, Disaster Recovery, Domain Name System (DNS), Cryptographic Protocols, Network Topologies, Hyper-V, Intrusion Detection and Prevention, Intrusion Detection Systems, Virtual Private Networks (VPN), Python (Programming Language), Network Security, Linux System Administration, Windows Servers, Network Monitoring, Routing, Network Administration, Performance Tuning, Windows PowerShell, Red Hat Enterprise Linux, Virtual Machines, Virtualization Technology, Wireless Access Point, Network Switches, Network Routing, Network Routers, Scripting, Computer Networking Systems, System Availability, Firewalls (Computer Science), Information Technology, Network Server, Cisco, Vulnerability Analysis, Vmware - **Published:** October 29, 2026 - **Apply:** https://www.careerbuilder.com/job-details/systems-network-administrator-oklahoma-city-ok--1590fb4f-c99b-4cf5-8e55-7ed456a458fe ## About the Role Network Administration/Management, Systems Administration/Management, Network Administration/Management, Systems Administration/Management, Security Clearance, Cisco Network Systems, Network Switching, Network Routing, Red Hat Linux Operating System, Linux Operating System, Ability to obtain a public trust security clearance 10+ years of technical professional experience required Expertise with Cisco networking technologies, including routing, switching, and security configurations. Strong knowledge of Linux operating systems (CentOS, Ubuntu, Red Hat). Experience with virtualization platforms (VMware and Hyper-V). Proficient in scripting and automation tools (e.g., Bash, Python, PowerShell). Solid understanding of Active Directory, DNS/DHCP, and Windows Server environments. Familiarity with network security technologies, including firewalls, VPNs, and intrusion detection systems. Bachelors degree in Cyber/IT required ## Description Seeking an experienced IT Systems Administrator to join our dynamic IT team. This individual will be responsible for managing and optimizing the infrastructure, with a focus on Cisco networking, Linux environments, virtualization, and Windows administration. The ideal candidate will have a strong technical background, excellent troubleshooting skills, and a passion for implementing cutting-edge technology solutions. Manage and optimize Cisco networking devices, including routers, switches, firewalls, and access points. Implement and troubleshoot routing, switching, and VPN configurations. Monitor network performance, analyze issues, and provide proactive solutions. Collaborate with other teams to ensure network security and performance. Linux Systems Administration: Administer and maintain Linux-based servers (CentOS, Ubuntu, Red Hat, etc.). Perform system updates, patches, and upgrades. Troubleshoot and resolve Linux system issues, including performance and security-related incidents. Scripting and automation (e.g., Bash, Python) for system management. Manage and optimize virtualization platforms such as VMware and Hyper-V. Perform provisioning, monitoring, and management of virtual machines and containers. Ensure high availability, scalability, and disaster recovery for virtualized systems. Windows Server Administration: Administer Windows Server environments (2016, 2019, 2022) for both physical and virtualized platforms. Configure and maintain Active Directory, Group Policies, and DNS/DHCP services. Troubleshoot Windows OS issues and optimize system performance. Security: Implement and enforce security best practices across networking, server, and system environments. Conduct regular vulnerability assessments and provide remediation plans. Collaborate with the security team to maintain firewalls, intrusion detection/prevention systems, and encryption protocols. Documentation & Reporting: Maintain detailed documentation of systems configurations, network topologies, and procedures. Prepare and deliver reports on system performance, project status, and incidents.