Senior Network Security Engineer
Company: GSSR Inc
Location: Reston
Posted on: February 13, 2026
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Job Description:
Job Description Job Description Summary: Client isseeking a
Senior Network Security Engineer. This resource will
administersecurity technology systems by architecting and
engineering/developing trustedsystems into secure systems. As a
Senior Network Security Engineer, thisresource will be responsible
for operating and maintaining thenetworksecurity infrastructure to
support mission-critical operations. Oversee security
infrastructure sustainment, maintenance, and advancedconfiguration
of security tools (Palo Alto firewalls, F5 WAF, Illumio,
Proofpointmail gateways, IDS, AWS, and other security tools).
Required Experience: 10 years of IT experience. Recent 2-3 years of
demonstrated experience with Palo Alto firewall. Recent 2 years of
demonstrated experience with F5 WAF and or Illumio Micro
segmentation. Demonstrated expertise in TCP/IP fundamentals, IP
subnetting, routing protocols (OSPF, BGP), and network management.
Nice to have: Prior healthcare payer industry experience.
Demonstrated experience with AWS security tools. Demonstrated
experience with Proofpoint Gateway (Email Security). Demonstrated
experience with Splunk and Palo Alto SOAR.
Keywords: GSSR Inc, Rockville , Senior Network Security Engineer, IT / Software / Systems , Reston, Maryland
