Skip to main content

Senior Network Engineer

Posted 2 days ago

general dynamicsDerwood (MD)

SENIORITY

Lead

Apply (opens in a new tab)

About the role

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 ProcessTLS 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

Before you apply

Applying takes about a minute. These four things decide how fast it moves after that.

Your profile is current

It's what we read first. Occupations, seniority and locations matter more than a long history.

Two examples you can talk through

Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.

A number in mind

What you're on now and what would make you move. We negotiate better when we know both.

Your notice period

Employers plan around it, and it's the question that stalls offers most often.

Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.

More like this