Senior Network Engineer

General Dynamics Information Technology•Rockville, MD
•$111,350 - $150,650•Onsite

About The Position

GDIT is seeking a Senior Network Engineer to support the Health Resources & Services Administration (HRSA). The role owns the design, operation, and security of HRSA’s network infrastructure and supports enterprise LAN/WAN, firewall, and remote-access infrastructure. It is a hands-on engineering position working with Project Managers, the Office of Information Security and Privacy (OISP), and desktop/server support teams. The engineer configures and manages network infrastructure, implements authentication solutions, designs and troubleshoots network architectures, and helps deliver complex network projects. The position also analyzes business and customer needs, maintains network integrity and compliance, and monitors performance to identify and resolve issues. This role is onsite five days per week in Rockville, Maryland.

Requirements

  • Bachelor’s degree or equivalent combination of education and experience.
  • At least 8 years of network engineering experience, including TCP/IP, DNS, routing and switching, IPsec VPN, firewalls, and end-to-end connectivity troubleshooting, including PCAP analysis with Wireshark.
  • Hands-on experience with Cisco switching and IOS upgrades, and at least one enterprise firewall platform: Cisco ASA/Firepower or Palo Alto/Panorama.
  • Experience in federal or enterprise environments with strict compliance and 99.9%+ uptime requirements.
  • Familiarity with NIST 800-53, TIC 3.0, and CISA BODs.
  • Formal change-management experience and TLS certificate lifecycle management.
  • Excellent communication, documentation, and collaboration skills.
  • Ability to obtain a Public Trust; must have resided in the U.S. for 3 of the last 5 years and pass a public trust background investigation.

Nice To Haves

  • Zscaler Certified Cloud Professional (ZCCP) or Zscaler Certified Cloud Administrator (ZCCA).
  • Okta Certified Professional or higher.
  • Experience with Cisco ISE, RSA SecurID, SolarWinds scripting, Azure networking (NSGs), Riverbed, Grafana, or Cribl.
  • Hands-on experience administering Zscaler (ZIA, ZPA, ZDX).
  • Experience integrating Okta or another IdP with Zscaler via SAML/SCIM.

Responsibilities

  • Configure and manage routers, switches, firewalls, and remote-access systems to support secure and scalable network operations.
  • Implement and support RSA SecurID / RSA Authentication Manager solutions, including integration with VPNs, RADIUS, and enterprise authentication systems.
  • Design, implement, and troubleshoot IPv4 and IPv6 network architectures, ensuring integration and scalability across environments.
  • Develop innovative methods and technical solutions using the engineering design process.
  • Collaborate with Project Managers, engineers, and stakeholders to deliver complex network projects on time and within scope.
  • Analyze customer and business requirements to develop technical solutions for complex networking challenges.
  • Ensure network integrity, security, and compliance with federal and organizational policies, including backup and recovery capabilities.
  • Monitor network performance using industry-leading tools and proactively identify and resolve issues.

Benefits

  • 401(k) with company match.
  • Comprehensive health and wellness packages, including medical plans, some with Health Savings Accounts, dental plans, and a vision plan.
  • Paid education and certifications.
  • Internal mobility support.
  • Full flex work weeks where possible.
  • Paid time off plans including vacation, sick and personal time, holidays, paid parental, military, bereavement, and jury duty leave.
  • Short- and long-term disability benefits.
  • Life, accidental death and dismemberment, personal accident, critical illness, and business travel and accident insurance are provided or available.
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