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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Network Engineer - **Company:** Northrop Grumman - **Location:** Redondo Beach, CA, United States - **Salary:** $103,600.0 - $155,400.0 - **Contract:** Permanent contract - **Skills:** Cellular Networks, Configuration Management Databases, Multicasting, Network Installation Services, Routing, Network Segmentation, Network Administration, Open Shortest Path First (OSPF), Sniffers, Transmission Control Protocol (TCP), Software Vulnerability Management, Wide Area Networks, Wireless Access Point, Wireless Networks, Network Routers, ARUBA, Firewalls (Computer Science), Juniper, Cisco - **Published:** July 2, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=39d2cec48478654a ## About the Role * Associate's degree with 7 years of relevant experience, or a Bachelor's degree with 5 years of relevant experience, or a Master's degree with 3 years of relevant experience, or a PhD with 1 year of relevant experience; a High School Diploma or equivalent with 9 years of relevant experience may be considered in lieu of a completed degree. * Candidates must have a current U.S. Government Secret level security clearance (or higher), to include a closed investigation date completed within the last 6 years OR must be enrolled in the U.S. Government Continuous Evaluation (CE) Program, in order to be considered. * Experience with managed network solutions and large-scale technical network engineering project experience. * Experience with Cisco Router and Switch equipment, Firewall Cisco Network Equipment, Cisco Wireless Technology, and Cellular Technology. * A strong knowledge of the TCP/IP protocol, Cisco Router and Switch products. * Knowledge and experience with LAN/WAN protocols and technologies such as multicast, QoS, CoS & OSPF., * Experience with SDWAN methodologies/equipment a plus. * Experience leading enterprise projects for large networks. * Experience in designing network solutions. * Experience leading network implementation projects. * Project Management certification. * Experience using test equipment such as the Network Associates Sniffer, cable and fiber optics test sets, and other protocol analyzers. * A strong knowledge of Cisco and Palo Alto Firewalls. * Current U.S. government Top Secret security clearance. ## Description * Plan, design, and deploy site and enterprise level network solutions in accordance with Northrop Grumman standards and best practices. * Produce comprehensive design review packages, including schematics, bill-of-materials, and implementation schedules. * Install and commission Cisco core network equipment (routers, multilayer switches, firewalls, wireless controllers, and access points). * Coordinate fiber-optic and copper cabling projects with suppliers and internal construction teams. * Provide Tier 2/3 troubleshooting for WAN, LAN, and SD-WAN environments, ensuring 99.9 % availability of firewalls, routing, and wireless services. * Execute corrective actions, hardware replacements, and software upgrades while maintaining accurate documentation in our configuration management database (CMDB). * Serve as the primary technical liaison with vendors (Cisco, Aruba, Juniper, etc.) for escalations, service definitions, and new service onboarding. * Work closely with the Redondo Beach sector customer base to translate business requirements into robust technical solutions. * Implement and enforce security policies for network segmentation, access control, and vulnerability remediation in line with government and NIST guidelines. * Participate in after-action reviews, recommend process enhancements, and mentor junior engineers on best-in-class networking practices. ## 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) - [Small, Secure, Interconnected: The next Internet Protocol](https://www.wearedevelopers.com/videos/100062-small-secure-interconnected-the-next-internet-protocol) - [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) - [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) ## Related Articles - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Best Companies in the Netherlands: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/193-best-companies-in-the-netherlands-top-25-companies-in-2023) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology)