Senior Network Engineer

GDIT is seeking a Senior Network Engineer to support the Health Resources & Services Administration (HRSA). You will own the design, operation, and security of HRSA's network infrastructure environment while supporting the broader enterprise LAN/WAN, firewall, and remote-access infrastructure. This is a hands-on engineering role working directly with Project Managers, the Office of Information Security and Privacy (OISP), and desktop/server support teams.

Responsibilities:

• Configure and manage routers, switches, firewalls, and remote access systems in support of 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 seamless integration and scalability across environments
• Provides innovative methods and technical solutions using the engineering design process
• Collaborate closely 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, proactively identifying and resolving issues

Requirements:

• Bachelor's degree or equivalent combination of education and experience
• 8+ years of network engineering experience, including: TCP/IP, DNS, routing/switching, IPsec VPN, firewalls, and end-to-end connectivity troubleshooting, including PCAP analysis with Wireshark
• Hands-on experience with Cisco switching/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

Preferred Qualifications:

• Zscaler Certified Cloud Professional (ZCCP) or Zscaler Certified Cloud Administrator (ZCCA)
• Okta Certified Professional or higher
• 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

Benefits:

• 401(k) with company match
• Comprehensive health and wellness packages
• Paid education and certifications
• Internal mobility support
• Cutting-edge technology to learn from