Network Engineer

Overview

Navy Federal Credit Union currently does not provide sponsorship for this role. Applicants must be authorized to work in the United States without the need for current or future sponsorship.

We are seeking an experienced Network Engineer to join our Network Delivery team as a senior technical resource responsible for the design, implementation, support, automation, and lifecycle management of enterprise application delivery and DNS services.

This role focuses on F5 BIG-IP, F5 rSeries, and Infoblox DNS/IPAM technologies supporting mission-critical applications across on-premises and cloud environments.

The ideal candidate will bring deep expertise in F5 and DNS technologies, strong troubleshooting skills, and experience leading complex infrastructure initiatives.

The position combines advanced operational support, engineering, platform modernization, automation, architecture, and technical leadership responsibilities. Participation in a rotating 24x7 on-call schedule is required, along with occasional after-hours support for maintenance, upgrades, migrations, and critical incident response. Success in this role requires close collaboration with application, security, cloud, infrastructure, and operations teams.

Responsibilities

• Provide Tier 4/5 engineering and operational support for enterprise F5 and DNS infrastructure, ensuring stability, availability, and performance of critical business services.
• Lead F5 and DNS engineering initiatives across development, test, and production environments.
• Design, implement, configure, and support:
  • F5 BIG-IP Local Traffic Manager (LTM)
  • F5 BIG-IP DNS/GTM
  • SSL offloading and certificate management
  • Application delivery and traffic management solutions
  • High-availability and disaster-recovery architectures
• Deploy, administer, and maintain F5 rSeries platforms, including provisioning, tenant management, upgrades, patching, and lifecycle planning.
• Administer and support Infoblox DNS, DHCP, and IP Address Management (IPAM/DDI) platforms.
• Troubleshoot complex load-balancing, DNS, application connectivity, and network-related issues.
• Lead platform refreshes, migrations, upgrades, and infrastructure modernization efforts.
• Develop and enhance automation solutions using Ansible, Python, REST APIs, and Infrastructure as Code.
• Serve as a technical leader for F5 architecture, application delivery, and enterprise traffic-management solutions.
• Evaluate emerging F5 and DNS capabilities and recommend adoption strategies.
• Partner with application, cloud, security, infrastructure, and operations teams to deliver scalable and resilient solutions.
• Participate in incident response, root-cause analysis, and problem management activities.
• Develop and maintain engineering standards, technical documentation, operational procedures, and runbooks.
• Mentor junior engineers and contribute to the team's technical roadmap and best practices.

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or an equivalent combination of education, training, and professional experience.
• 5+ years of hands-on experience with application delivery, load balancing, DNS, and enterprise networking technologies.
• Strong hands-on experience engineering, administering, and supporting F5 BIG-IP environments, particularly LTM and DNS/GTM.
• Strong understanding of load balancing, application delivery, DNS, TCP/IP, SSL/TLS, high availability, and enterprise networking.
• Experience supporting Infoblox DNS/DHCP/IPAM environments.
• Experience supporting and troubleshooting large-scale, highly available, production-critical enterprise infrastructure.
• Proven ability to troubleshoot complex application delivery, DNS, load-balancing, and network connectivity issues.
• Experience providing advanced Tier 4/5 engineering support and leading complex implementations, migrations, upgrades, infrastructure refreshes, and modernization initiatives.
• Strong documentation, communication, collaboration, and problem-solving skills.
• Demonstrated technical leadership and mentoring capabilities.
• Ability to work effectively across application, security, cloud, infrastructure, and operations teams.

• Experience administering F5 rSeries platforms.
• Experience with automation and orchestration technologies, including:
  • Ansible
  • Python
  • REST APIs
  • Infrastructure as Code (IaC)
  • ServiceNow integrations
• Experience supporting cloud and hybrid-cloud environments, including Microsoft Azure, Amazon Web Services (AWS), and Oracle Cloud Infrastructure (OCI).
• Knowledge of cloud networking, load balancing, DNS, hybrid connectivity, and application delivery.
• Preferred Certifications
  • F5 Certified Administrator (F5-CA), F5 Certified Technology Specialist (F5-CTS), or equivalent practical experience.
  • Infoblox certification or equivalent practical experience.
  • Relevant cloud or networking certifications.

• Monday - Friday, 8:00AM - 4:30 PM
• Participation in a rotating 24x7 on-call support schedule.
• Availability for occasional after-hours maintenance, upgrades, migrations, and critical incident response.

• 820 Follin Lane, Vienna, VA 22180
• 5510 Heritage Oaks Drive, Pensacola, FL 32526
• 9999 Willow Creek Road, San Diego, CA 92131