TS/SCI Network Administrator – Secure, On-Site Ops

cFocus Software Incorporated; United States; On-site; USD 85,000 - 110,000; Full time

Job summary

cFocus Software seeks a Network Administrator to join our program supporting the United States Air Force. This on-site role is in Linthicum Heights, MD, and requires an Active TS/SCI clearance.

You'll deploy and maintain firewalls, routers, switches, and related infrastructure, coordinate with systems teams, and ensure secure, compliant operations across on-premises and hybrid environments. A strong emphasis on monitoring, incident response, and documentation will guide daily tasks and

Qualifications

• Active TS/SCI clearance
• B.S. in Computer Science, IT, or related field
• Experience administering enterprise networks and configuring routers, switches, firewalls, and related infrastructure
• LAN/WAN operations, routing, switching, IP addressing, and secure connectivity
• Diagnose network faults, analyze performance and logs, restore connectivity
• Apply secure configuration baselines, patches, vulnerability remediation, STIG compliance
• Maintain network diagrams and configuration records, follow change management
• Evaluate network utilization and capacity, recommend infrastructure improvements
• Clear communication with users, providers, and technical teams

Responsibilities

• Deploy, configure, administer, and maintain firewalls, routers, switches, hubs, and cabling per government baselines.
• Operate and secure network infrastructure, coordinating with systems admins on connectivity and hybrid integrations.
• Continuously monitor network performance, availability, and security; configure alerts and logs; investigate outages.
• Resolve escalated incidents with service desk and NOC; coordinate restoration and actions.
• Deploy network updates and configuration changes under release schedules, change controls, and DevSecOps.
• Maintain network diagrams, configuration records, and as-built documentation; track changes via configuration management.
• Provide inventory data, utilization reports, and capacity planning for government review monthly.
• Recommend upgrades, replacement, repairs; support VMs and cloud services.
• Coordinate patching and vulnerability remediation with cybersecurity; implement STIGs.
• Monitor security incidents; provide logs/data; implement corrective actions.
• Maintain government-approved security tools and RMF evidence for ATO or continuous ATO.
• Maintain external service provider contacts and rapid response for disruptions.
• Notify government of circumstances beyond contractor control; assist DC3 notifications within 30 minutes for Priority 1 incidents.
• Support NOC/SOC monitoring and enterprise scanning connectivity.

Skills

Active TS/SCI clearance

B.S. Computer Science/IT

Enterprise network admin

LAN/WAN experience

Router/Switch/Firewall config

Network troubleshooting

Secure baselines & STIG

Change management

Network diagrams & docs

Capacity planning

Clear communication

Education

B.S. Computer Science/IT

Job description

cFocus Software seeks a Network Administrator to join our program supporting the United States Air Force. This on-site role is in Linthicum Heights, MD, and requires an Active TS/SCI clearance.

You'll deploy and maintain firewalls, routers, switches, and related infrastructure, coordinate with systems teams, and ensure secure, compliant operations across on-premises and hybrid environments. A strong emphasis on monitoring, incident response, and documentation will guide daily tasks and