Senior Network Administrator
Core
Design, implement, secure, and sustain mission-critical network infrastructure for classified and unclassified environments, supporting business operations and defense missions.
Role type
Senior Network Administrator (Defense/Security)
Builds
Secure network architectures, firewall policies, wireless solutions, and zero-trust implementations for defense contractors.
Domain
Defense / Cybersecurity / Network Infrastructure
Deliverable
infrastructure
Required skills
Palo Alto firewalls (PAN-OS, Panorama, GlobalProtect), Aruba networking (switching, wireless, ClearPass), TCP/IP, routing (BGP, OSPF), VLANs, VPNs, network segmentation, zero-trust architecture, vulnerability remediation, incident response, compliance with DoD frameworks (RMF, STIGs), classified environment operations.
Preferred skills
Palo Alto certifications (PCNSE), Aruba certifications (ACMP, ACDX), network automation (Python, Ansible), cloud networking (AWS GovCloud, Azure Government), Zscaler ZIA/ZPA, high-availability systems.
Technologies
Palo Alto Networks, Aruba Networks, ClearPass, Zscaler, Python, Ansible, AWS GovCloud, Azure Government, PAN-OS, Panorama, GlobalProtect, BGP, OSPF.
Responsibilities
Design and deploy secure network architectures; configure and manage Palo Alto firewalls; implement and support Aruba networking solutions; perform network segmentation and zero-trust implementation; monitor network performance and troubleshoot complex issues; conduct vulnerability remediation and ensure compliance; support incident response and traffic analysis; maintain network documentation and participate in system accreditation.
Seniority
Senior, hands-on IC