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From the employer's careers site First seen 14 Nov 2026

Enterprise Network Engineer

GDIT Annapolis Junction, MD On-site senior full-time

Salary

$131,750 - $178,250 per year

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Description

We are seeking an experienced Enterprise Network Engineer who understands how complete networks operate,not simply how to configure individual devices.

You will engineer, operate, troubleshoot, and maintain three distinct enterprise network environments, each with unique security boundaries, configurations, and operational requirements. Using technologies such as Juniper switches, Palo Alto firewalls, and F5 load balancers, you will help ensure secure, reliable, and high-performing connectivity across a complex enterprise.

The ideal candidate understands why configurations work, anticipates the impact of changes, and can troubleshoot the entire network path.

Responsibilities

  • Engineer, configure, operate, and improve infrastructure across three separate enterprise network environments.
  • Design, implement, and troubleshoot routing and switching configurations.
  • Maintain Palo Alto firewall configurations, security rules, network segmentation, and controlled communications between authorized systems.
  • Configure and support F5 load-balancing services for application availability, traffic distribution, and performance.
  • Trace network paths, analyze traffic flows and routing decisions, and resolve end-to-end connectivity issues.
  • Evaluate how routing, switching, firewalls, load balancers, security controls, and connected infrastructure interact.
  • Maintain configurations appropriate to each environment’s architecture, security boundary, and operational requirements.
  • Assess the potential impact of proposed changes before implementation.
  • Identify recurring issues and recommend improvements to reliability, performance, security, and operational efficiency.
  • Collaborate with systems, security, virtualization, cloud, application, and other engineering teams.

What Success Looks Like You will understand how each network environment is designed and how its components work together. When connectivity fails, you can trace the traffic, identify where communication is interrupted, and determine whether the cause involves routing, switching, firewall policy, load balancing, or another infrastructure dependency.

What You'll Need to Succeed

  • Education: Bachelor of Arts/Bachelor of Science
  • Experience: 8+ years of related experience
  • Technical skills:
  • Experience engineering, administering, or supporting enterprise network environments.
  • Strong knowledge of enterprise routing, switching, and network troubleshooting.
  • Hands-on experience with Juniper network switches.
  • Experience configuring and troubleshooting Palo Alto firewalls.
  • Experience supporting and maintaining F5 load balancers.
  • Knowledge of VLANs, IP addressing, subnetting, routing protocols, segmentation, TCP/IP, and network traffic flows.
  • Ability to troubleshoot connectivity across the complete network path and identify configuration-related issues.
  • Understanding of security boundaries and the effect of network policies on enterprise communications.
  • Ability to independently analyze complex problems, determine root causes, develop solutions, and safely implement changes.
  • Strong communication and cross-functional collaboration skills.

Benefits

  • Comprehensive benefits and wellness packages
  • 401(k) plan with company match
  • Competitive pay and paid time off
  • Full flex work weeks where possible
  • 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

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Skills

Required

  • Juniper switches
  • Palo Alto firewalls
  • F5 load balancers
  • enterprise routing
  • switching
  • network troubleshooting
  • VLANs
  • IP addressing
  • subnetting
  • routing protocols
  • segmentation
  • TCP/IP
  • network traffic flows

Nice to have

  • Cisco routing and switching
  • advanced Juniper routing and switching knowledge
  • Palo Alto security policy administration and troubleshooting
  • F5 BIG-IP, LTM, GTM/DNS
  • packet capture, protocol analysis, network monitoring, and traffic-analysis tools
  • network automation or configuration-management experience
  • PowerShell, Python, or similar scripting skills
  • Microsoft Azure or AWS networking experience
Apply on GDIT