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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # System Administrator - **Company:** Zachary Piper - **Location:** Fort Belvoir, VA, United States - **Experience:** Experienced - **Salary:** $100,000.0 - $135,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, Backup Devices, Bash Shell, Ubuntu (Operating System), CentOS, Cloud Computing, Configuration Management, CompTIA Security+, Cyber Security, Data Centers, Dynamic Host Configuration Protocol, Disaster Recovery, RAID, Domain Name System (DNS), Elasticsearch, VMware ESX Servers, Failover Clustering, Monitoring of Systems, Supervisory Control and Data Acquisition (SCADA), Hyper-V, Information Security Management, Networking Hardware, IPv4, IPv6, Intrusion Detection and Prevention, Subnetting, Virtual Private Networks (VPN), Internet Small Computer System Interface (ISCSI), Information Systems Security Architecture Professional, Information Systems Security Engineering Professional, Kerberos (Protocol), Network Security, Network Troubleshooting, Lightweight Directory Access Protocols (LDAP), Linux System Administration, Linux Servers, Windows Servers, Network Attached Storage (Server Appliance), Network File Systems, Network Monitoring, Routing, Network Segmentation, Packet Analyzer, Network Administration, Windows PowerShell, Red Hat Enterprise Linux, Remote Access Technology, Security Information and Event Management, Simple Network Management Protocols, Systems Integration, TCP/IP, Wireshark, VMware Infrastructure, Virtual Local Area Networks, Virtual Machines, Virtualization Technology, VMware VSphere, Software Vulnerability Management, Network Routers, Scripting, Computer Networking Systems, Data Storage Management, Load Balancing, System Availability, Firewalls (Computer Science), Juniper, Build Management, Infrastructure Automation Frameworks, Information Technology, Process Control Systems, Vcenter, Performance Monitor, Patch Management, Nessus, Operational Systems, CIS Benchmarks, Splunk, Event Viewer, Servicenow, Plan of Action and Milestones, Vulnerability Analysis, Vmware - **Published:** August 23, 2026 - **Apply:** https://www.careerjet.com/job/usf0a3e63aeba10b231d5e5eb27cf97072/eaa ## About the Role * Active TS/SCI clearance with the ability to obtain TS/SCI with Polygraph * 3+ years (Master's), 5+ years (Bachelor's) IT, Cybersecurity, or Risk Management. * Knowledge of DoD RMF lifecycle, NIST 800-53 controls, and supporting documentation (e.g., eMASS, POA&M). * Hands-on experience with ACAS, HBSS, vulnerability scanning, mitigation, and STIG implementation across systems. * Ability to assess, troubleshoot, and manage control networks and security components. * One of the following certifications is required: CASP CE, CISSP, CISSP-ISSAP, CISSP-ISSEP, CSSLP, CISA, CISM, GCED, or GCIH. ## Description Zachary Piper Solutions is seeking a System Administrator to join the Security and Electronic team. The System Administrator will support the design, engineering, integration, operation, and maintenance of electronic security services. There are positions available in Ft. Belvoir and Chantilly, VA. This is an exciting opportunity to support federal customers in an exciting and engaging opportunity. Responsibilities for the System Administrator: * Implementing DoD Security Technical Implementation Guides (STIGs) across traditional IT and Operational Technology (OT) systems. * Familiarity with system hardening, patch management, and STIG implementation. * Administer, maintain, and optimize Windows/Linux servers, network devices, and OT systems supporting electronic security infrastructure. * Perform system hardening, patching, and configuration management in accordance with DoD STIGs and security baselines. * Performing vulnerability scanning and documenting system vulnerabilities. * Assist in network and control system troubleshooting, including firewalls, switches, and segmented OT networks., System Administrator, Systems Administration, Infrastructure Management, Windows Server, Windows Server 2016, Windows Server 2019, Windows Server 2022, Active Directory, Group Policy, GPO Management, DNS, DHCP, LDAP, Kerberos, Windows Administration, Linux Administration, Red Hat, CentOS, Ubuntu, Server Hardening, Patch Management, System Patching, Configuration Management, Endpoint Management, PowerShell, Bash Scripting, Python Scripting, Automation, Infrastructure Automation, System Monitoring, Performance Monitoring, Log Management, Event Viewer, SIEM Integration, Splunk, Elastic Stack, System Troubleshooting, Root Cause Analysis, Virtualization, VMware, VMware vSphere, VMware ESXi, vCenter, Hyper-V, Virtual Machines, VM Provisioning, VM Migration, Snapshots, Virtual Infrastructure, Datacenter Operations, Storage Management, SAN, NAS, RAID, iSCSI, NFS, Cloud Virtualization, Hybrid Environments, Networking, Network Administration, TCP/IP, IPv4, IPv6, Subnetting, VLANs, Switching, Routing, Firewalls, Network Security, Cisco Networking, Juniper, Switch Configuration, Router Configuration, Network Troubleshooting, Packet Capture, Wireshark, Load Balancing, VPN, Remote Access, Network Monitoring, SNMP, Cybersecurity Support, STIG Implementation, DISA STIGs, System Hardening, Vulnerability Management, Vulnerability Scanning, ACAS, Nessus, HBSS, Endpoint Security, Threat Detection, Incident Response Support, Security Compliance, RMF Framework, DoD RMF, NIST 800-53, NIST SP 800-82, A&A, eMASS, POA&M, Security Controls, Risk Management, Compliance Audits, ICS, SCADA, OT Systems, Industrial Control Systems, Control Networks, OT Security, Critical Infrastructure, System Inventory, Asset Management, Configuration Baselines, Network Segmentation, Secure Architecture, Infrastructure Support, System Integration, Deployment, Imaging, System Builds, Lifecycle Management, Backup and Recovery, Disaster Recovery, High Availability, Failover Clustering, Data Protection, DoD Environment, DoDIN, CCRI, CCORI, CYBERCOM, Federal Systems, TS/SCI Clearance, Secure Environments, Government IT, ISO Standards, Quality Assurance, Technical Documentation, SOP Development, Operational Procedures, Change Management, ITIL, ServiceNow, CISSP, Security+, CASP, CISM, CISA, GCIH, GCED, MANTECH seeks a motivated, career and customer-oriented LINUX SERVER ADMINISTRATOR to join our team in QUANTICO, VA. 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