F5 Load Balancing Network Engineer

Leidos is seeking an F5 Load Balance Network Engineer to design, implement, and support advanced F5-based solutions for mission-critical government and commercial clients. In this role, you will architect and maintain F5 BIG-IP environments, including LTM, ASM, and iRules, to ensure secure, highly available application delivery. You will troubleshoot complex L2-L7 issues, optimize traffic flows, and integrate F5 platforms with broader network and security infrastructures. Working in a collaborative, mission-driven culture, you'll contribute to digital modernization initiatives while enjoying robust benefits, flexible work options, and strong professional development opportunities.

Responsibilities

• Design, configure, and maintain F5 BIG-IP/LTM/ASM load balancing solutions for enterprise and government clients
• Implement traffic management, SSL offloading, health checks, and high availability across critical applications
• Integrate F5 platforms with firewalls, VPNs, and broader network/security architectures
• Monitor, troubleshoot, and resolve complex L2-L7 network and application performance issues
• Create and maintain i
• Rules, policies, and profiles to optimize security and availability
• Develop and maintain architecture diagrams, runbooks, and configuration documentation
• Collaborate with security, systems, and application teams on solution design and incident response
• Harden F5 devices and configurations in alignment with security and compliance requirements
• Support migrations, upgrades, and modernization of legacy load balancing environments
• Provide on-call or after-hours support for mission-critical changes and incidents as needed

Required Skills

• F5 BIG-IPF5 LTMF5 ASM / WAFi
• Rules (TCL)
• Application delivery controllers (ADC)
• Load balancing design and configuration
• TCP/IP networking (L2-L4)
• HTTP/HTTPS and SSL/TLS offload
• Network security and hardening
• Monitoring and troubleshooting tools