Senior Network Engineer

Senior Network Engineer

The Senior Network Engineer will support Health Resources & Services Administration (HRSA) projects by providing hands-on expertise in the design, implementation, and management of enterprise network infrastructure. This role works closely with Project Managers and cross-functional teams to deliver complex initiatives, ensuring high availability, security, and performance of network systems.

Responsibilities for this position include:

• Design, plan, implement, and maintain of enterprise LAN/WAN, Zscaler, and network security infrastructure
• 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
• Plan and execute network upgrades, enhancements, and technology refresh initiatives
• Evaluate and recommend emerging technologies to improve network performance, security, and scalability
• Coordinate procurement of network hardware, software, and vendor/subcontractor services as needed
• Develop and maintain network documentation, diagrams, and standard operating procedures.

What you need to succeed:

• Bachelor's degree or equivalent combination of education and experience.
• 8+ years' experience in network engineering, as described below
• Experience supporting federal or enterprise-level IT environments
• Strong problem-solving, communication, and organizational skills

Technical requirements:

• Strong experience in network engineering and architecture (LAN/WAN, routing/switching, firewalls, Zscaler)
• Hands-on experience with RSA SecurID / RSA Authentication Manager and network authentication protocols (RADIUS, LDAP)
• Expert with Cisco switches network software upgrades
• Troubleshoot complex network issues (Expert)
• Vulnerability Remediation Process
• Update technical documentation, maintaining & implementation of the SOP for network security (A Must)
• Cisco IPsec VPN troubleshooting
• Cisco Identity Services Engine (ISE)
• SolarWinds automation scripts
• Cisco ASA Firewall 5500 / Firepower (A Must)
• Palo Alto Firewalls Panorama
• Azure experience with NSGs (Networking)
• Analyzing PCAP Files using Wireshark
• Change Management Process
• TLS certificates renewals and installs
• Troubleshooting using Riverbed, Grafana or Cribl, and other tools as available
• Must be willing to work after hours and weekends during maintenance windows (onsite) as-needed (A Must) - approximately every 9 weeks

Location: Rockville, MD (onsite: 5 days/week) Clearance: Ability to obtain a Public Trust: candidate must have lived in the United States at least three (3) out of the last five (5) years and pass a public trust background investigation.

GDIT is your place:

• 401K with company match
• Comprehensive health and wellness packages
• Internal mobility team dedicated to helping you own your career
• Professional growth opportunities including paid education and certifications
• Cutting-edge technology you can learn from