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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Engineer - Firewall & Load Balancing - **Company:** Peraton Inc - **Location:** Springfield, VA, United States - **Experience:** Expert - **Salary:** $104,000.0 - $166,000.0 - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Application Firewall, Microsoft Azure, Cisco PIX, Cloud Computing, CompTIA Security+, Cyber Security, Computer Networks, System Configuration, Network Address Translation, Domain Name System (DNS), Internetworking, Intrusion Detection and Prevention, Virtual Private Networks (VPN), OSI Models, Python (Programming Language), Network Security, Network Troubleshooting, Network Monitoring, Routing, Network Segmentation, Network Service, Paessler Router Traffic Grapher, Ansible, BIG-IP Global Traffic Manager (GTM), Zero Trust Network Access, Server Virtualization, Software Deployment, Transmission Control Protocol (TCP), Wireshark, Virtual Local Area Networks, Wide Area Networks, SSL Certificate Management, Snort (Software), Diagnostic Tools, Scripting, Transport Layer Security, Load Balancing, Computer Network Operations, BIG-IP Local Traffic Manager (LTM), Firewalls (Computer Science), SolarWinds (Software), Palo Alto Networks, Firepower, Terraform, Open Network Automation Platform, Splunk, Big Ip, Cisco, Servicenow - **Published:** July 21, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9042521/network-engineer-firewall-load-balancing ## About the Role * Bachelor's degree with 8 years of experience, Master's degree and 6 years of experience, Associate's degree with 10 years of experience, or High School Diploma/equivalent with 12 years of experience. * U.S. Citizenship (Required for CBP and government positions) * Must have the ability to obtain a CBP Public Trust clearance. * 5+ years of hands-on experience supporting enterprise network engineering or network security environments. * Experience administering and troubleshooting F5 BIG-IP solutions, including LTM, virtual servers, pools, SSL profiles, and traffic management configurations. * Experience configuring and managing Palo Alto Networks Next Generation Firewalls, including security policies, NAT, VPNs, and Panorama administration. * Experience supporting Cisco Firepower Threat Defense (FTD) devices using Firepower Management Center (FMC). * Strong understanding of network security concepts, TCP/IP networking, OSI model, routing protocols, VLANs, VPNs, and network segmentation. * Experience using network monitoring and troubleshooting tools such as SolarWinds, PRTG, Splunk, Wireshark, or similar platforms. * Active security clearance required; DHS clearance or prior DHS suitability preferred. * Experience supporting DHS, CBP, federal government, or other mission critical network environments. * Experience with DISA STIGs, NIST 800-53 security controls, or federal cybersecurity compliance requirements. * Experience supporting SD-WAN technologies such as Palo Alto Prisma SD-WAN or Cisco Viptela. * Experience supporting cloud networking environments, including AWS, Azure, and hybrid connectivity solutions. * Experience with network automation and scripting using Python, Ansible, Terraform, or similar technologies. * Experience using IT Service Management platforms such as ServiceNow or Remedy. * Experience supporting legacy Cisco ASA migration to Cisco Firepower Threat Defense. * Preferred Certifications: + F5 Certified BIG-IP Administrator (F5-CA) + Palo Alto Networks Certified Network Security Engineer (PCNSE) + Cisco Certified Network Professional (CCNP) Security or CCNP Enterprise + Cisco Certified Internetwork Expert (CCIE) Security + CompTIA Security+ or equivalent security certification ## Description The ideal candidate will have experience managing complex enterprise security platforms, troubleshooting network security issues, implementing secure configurations, and supporting hybrid infrastructure environments. The Network Security Engineer will collaborate with network operations, cybersecurity teams, and government stakeholders to maintain secure, reliable, and compliant network services., * Design, configure, maintain, and troubleshoot enterprise network security infrastructure, including firewalls, load balancers, VPN solutions, and network security platforms. * Administer and support F5 BIG-IP environments, including Local Traffic Manager (LTM), Global Traffic Manager (GTM/DNS), virtual servers, pools, iRules, SSL profiles, health monitors, and traffic policies. * Perform SSL/TLS certificate management, traffic optimization, application delivery troubleshooting, and load balancing configuration. * Support F5 Advanced Web Application Firewall (WAF) policies and security configurations. * Configure and manage Palo Alto Networks Next Generation Firewalls, including security policies, NAT, QoS, decryption, and VPN configurations. * Administer Palo Alto Panorama for centralized firewall management across enterprise environments. * Configure and maintain Palo Alto security capabilities, including App-ID, User-ID, Content-ID, Threat Prevention, URL Filtering, and WildFire. * Manage Cisco Firepower Threat Defense (FTD) devices using Firepower Management Center (FMC). * Develop and maintain Access Control Policies (ACP), IPS policies, malware inspection policies, and Snort rule tuning within Cisco FMC. * Perform firewall event analysis, security monitoring, incident investigation, and troubleshooting activities. * Support network engineering activities including VLANs, segmentation, routing protocols, VPN connectivity, and network performance optimization. * Develop and maintain network documentation including diagrams, standard operating procedures, and technical runbooks. * Support change management activities by ensuring network security changes are tested, documented, approved, and implemented in accordance with established processes. * Monitor network performance, troubleshoot incidents, perform root cause analysis, and support service level agreement (SLA) requirements. * Collaborate with cybersecurity teams to support Zero Trust architecture, defense in depth strategies, and security compliance requirements. ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Our journey with Spring Boot in a microservice architecture](https://www.wearedevelopers.com/videos/511-our-journey-with-spring-boot-in-a-microservice-architecture) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) ## Related Articles - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)