Network Administrator

SAIC is seeking a Journeyman Network Administrator in Colorado Springs, CO who will provide network infrastructure expertise to the organization, focusing heavily on Cisco and Juniper routing, switching, and security platforms. The incumbent ensures the secure, reliable operation of the network backbone, translating technical directives, firewall requests, and security findings into concrete network actions. This position requires solid hands-on experience in managing enterprise network hardware, monitoring network traffic, and swiftly remediating connectivity or configuration issues across diverse vendor environments.

Responsibilities:

• Network Operations & Maintenance. Configures, maintains, and troubleshoots Cisco (IOS/NX-OS) and Juniper (Junos) routers, switches, and firewalls to ensure high availability and secure data transmission.
• Security & Vulnerability Response. Analyzes and implements network-focused security tasks and Information Assurance Vulnerability Management (IAVM) directives; assesses exposure, applies firmware updates or ACL changes, and reports compliance.
• Firewall & Perimeter Management. Manages access control lists (ACLs), virtual private networks (VPNs), and perimeter defense configurations in alignment with security policies and zero-trust guidelines.
• Network Telemetry & Logging. Ensures that network devices are properly forwarding syslog, NetFlow, and SNMP data to centralized security monitoring and SIEM systems; works with security administrators to resolve collection gaps.
• Incident Support. Acts as a primary responder for network-related outages or technical incidents; conducts packet-level analysis and troubleshooting, implementing containment or routing changes as required.
• Documentation. Maintains accurate network topology diagrams, configuration backups, and standard operating procedures (SOPs) suitable for enterprise accreditation and audits.

SAIC® is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.