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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Administrator - CSfC - **Company:** CACI International Inc. - **Location:** Liberty, NC, United States - **Salary:** $71,500.0 - $150,200.0 - **Contract:** Permanent contract - **Skills:** Access Control List, Access Network, Backup Devices, Cyber Security, Computer Networks, Domain Name System (DNS), Internet Protocol, Intrusion Detection Systems, Virtual Private Networks (VPN), Network Security, Network Forensics, Network Protocols, Open Systems Interconnection (OSI), Service Pack, Security Information and Event Management, TCP/IP, Transmission Control Protocol (TCP), Network Access Control, Cybercrime, Cyber Warfare - **Published:** June 25, 2026 - **Apply:** https://dejobs.org/x/x/F5B124A36F2A4D4AAE00BFF82084D6BE/job/ ## About the Role We are seeking a well rounded Systems Administrator with Systems, Network and Security operations experience., Required: * Must be a U.S. Citizenship and have an active TS/SCI * Knowledge of NSA Commercial Solutions for Classified (CSfC) technologies/Security Requirements * Knowledge of computer networking concepts and protocols, and network security methodologies. * Knowledge of host/network access control mechanisms (e.g., access control list). * Knowledge of Intrusion Detection System (IDS)/Intrusion Prevention System (IPS) tools and applications. * Knowledge of incident response and handling methodologies. * Knowledge of cybersecurity principles and organizational requirements * Knowledge of network protocols such as TCP/IP, Dynamic Host Configuration, Domain Name System (DNS), and directory services. * Knowledge of network traffic analysis (tools, methodologies, processes). * Knowledge of how traffic flows across the network (e.g., Transmission Control Protocol (TCP), Internet Protocol (IP), Open System Interconnection Model (OSI)). * Knowledge of risk management processes (e.g., methods for assessing and mitigating risk). * Knowledge of Virtual Private Network (VPN) security. * Assist in identifying, prioritizing, and coordinating the protection of critical cyber defense infrastructure and key resources. * Knowledge of cyber defense policies, procedures, and regulations. * Knowledge of cyber threats and vulnerabilities. * Skill in troubleshooting and diagnosing cyber defense infrastructure anomalies and work through resolution. * Knowledge of specific operational impacts of cybersecurity lapses. * Knowledge of data backup, types of backups (e.g., full, incremental), and recovery concepts and tools. * Skill in applying host/network access controls (e.g., access control list). * Perform system administration on specialized cyber defense applications and systems or Virtual Private Network (VPN) devices, to include installation, configuration, maintenance, backup and restoration. * Knowledge of basic system, network, and OS hardening techniques. * Skill in system, network, and OS hardening techniques. Desired: * Bachelor's degree or higher from an accredited college or university or university or experience operating within a Cyber Security Operations Center (SOC) * Have an active TS/SCI with Poly (or be able to obtain and maintain) ## Description The successful candidate(s) will be responsible for providing 24/7/365 team support set up in a shift work system that will provide system uptime and threat monitoring of the CSfC Gateway and Remote Nodes. Individual will also analyze the solution components and SIEM to detect anomalous events, implement initial incident response procedures/troubleshooting, maintain accurate and detailed documentation of security events, investigation findings, and remediation steps as applicable. Maintains Gateway solution such that customer will successfully renew annually their NSA Registration and ATO accreditation. 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