System Administrator

Join the Security and Electronic team in Ft. Belvoir or Chantilly, VA, supporting federal customers with the design, engineering, integration, operation, and maintenance of electronic security services.

Responsibilities

• Implement DoD Security Technical Implementation Guides (STIGs) across traditional IT and Operational Technology (OT) systems.
• 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.
• Conduct vulnerability scanning and document system vulnerabilities.
• Assist in network and control system troubleshooting, including firewalls, switches, and segmented OT networks.

Requirements

• Active TS/SCI clearance with the ability to obtain TS/SCI with Polygraph.
• 3+ years (with Master’s) or 5+ years (with Bachelor’s) of experience in 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: CASP CE, CISSP, CISSP-ISSAP, CISSP-ISSEP, CSSLP, CISA, CISM, GCED, or GCIH.

Skills

• Windows Server (2016, 2019, 2022), Active Directory, Group Policy, DNS, DHCP, LDAP, Kerberos
• Linux Administration (Red Hat, CentOS, Ubuntu)
• Server hardening, patch management, configuration management, endpoint management
• Scripting (PowerShell, Bash, Python) and automation
• System monitoring, performance monitoring, log management, SIEM integration (Splunk, Elastic Stack)
• Virtualization (VMware vSphere, ESXi, vCenter, Hyper-V)
• Networking (TCP/IP, IPv4/IPv6, VLANs, firewalls, Cisco/Juniper, VPN, SNMP)
• Cybersecurity (STIG implementation, ACAS, HBSS, vulnerability scanning, RMF, NIST 800-53/800-82)
• OT systems, ICS, SCADA, control networks, network segmentation
• Backup and recovery, disaster recovery, high availability, failover clustering
• DoD environments, DoDIN, CCRI, CCORI, CYBERCOM, federal systems
• Technical documentation, SOP development, change management, ITIL, ServiceNow

Pay

Salary range: $100,000 – $135,000, depending on experience.

Benefits

• Medical, Dental & Vision Insurance
• 401k
• PTO, Paid Holidays, Sick leave as required by law