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# Sr Principal Network Engineer - Secret

- **Company:** Northrop Grumman
- **Location:** Redondo Beach, CA, United States (Remote available)
- **Experience:** Expert
- **Salary:** $129,300.0 - $193,900.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Agile Methodology, Border Gateway Protocol, VoIP, Cisco IOS, Cloud Computing, Software Documentation, Cyber Security, Information Systems, System Configuration, Linux, Enhanced Interior Gateway Routing Protocol, Networking Hardware, IPv4, IPv6, Subnetting, Network Planning and Design, Network Administration, Network Management System, Open Shortest Path First (OSPF), Ansible, SAP (Applications), Data Streaming, Workflow Management Systems, Identity Services Engine, SolarWinds (Software), Splunk, Devsecops, Cisco, Vmware
- **Published:** September 2, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9142625/sr-principal-network-engineer-secret

## About the Role

* Master's Degree with 6 years of relevant experience; OR a Bachelor's Degree with 8 years of relevant experience; OR an Associate's Degree with 10 years of relevant experience; OR a High School Diploma (or equivalent) with 12 years of relevant experience is required
 * Must have a current US Government Secret with the ability to obtain and maintain a US Government Top Secret Clearance
 * Candidates must have the ability to obtain, and maintain, access to Special Programs as a condition of continued employment
 * Must have a Security+ certification or greater
 * Experience with network design, architecture, specifications, and equipment selection
 * Understanding and implementation of IPv4 and IPv6 network design, including IP subnetting and protocols including BGP, OSPF and EIGRP
 * Understanding and implementation of network device configuration and troubleshooting (ideally, Cisco IOS/IOS-XE/Fire Power/PANOS), * Bachelor's degree Network Engineering
 * Active Top Secret, SCI, SAP/SAR access, or Polygraph
 * Professional certification specific to the networking industry like a CCNP Service Provider/CCIE or equivalent.
 * Familiar with network management applications, like Splunk, Cisco ISE, Cisco SDWAN, Palo Alto Panorama, SolarWinds, and Netbox. Understanding of cloud and automation tools such as (NSXT, SDWAN, SDA, Ansible)
 * Exposure to the Risk Management Framework, associated security controls, and STIGs.
 * Familiar with Windows, Linux, and VMWare configuration and troubleshooting.
 * Experience with HAIPE/TACLANE and other military COMSEC/CRYPTO equipment and procedures.
 * Experience with complex multi-mesh hybrid HAIPE topologies managed via orchestration tools such as GemOne.
 * Experience with Cisco Unified Communications / VoIP and VTC

## Description

The Northrop Grumman CIDO Classified Solutions team is seeking a Sr. Network Engineer to support information system lifecycle activities. The selected candidate will be required to work on-site, full-time at our San Diego, CA location.

Note: Due to the classified nature of the work being performed, this position does not offer any virtual or telecommute working options. Applicants are encouraged to apply, only if they are willing to work on-site.

The responsibilities of this role include, but are not limited to, the following

 * Use Model-based Engineering, DevSecOps and Agile practices we continue to evolve how we deliver critical national defense products and capabilities for the warfighter
 * Design, operate and manage companion, RMF compliant classified and unclassified networks in both lab and field environments.
 * Deploy, utilize, and maintain network management tools.
 * Maintain smooth operation of network and network management equipment during network expansion.
 * Collaborate with engineers and stakeholders to design network integration solutions to achieve mission objectives on a wide range data flow scenarios and use cases.
 * Plan and install security patches in adherence to program security requirements.
 * Monitor and sustain target uptime and latency on systems. Recommend and implement system enhancements that will improve the performance, utilization, and reliability of the system including scripting for optimizing IT environment.
 * Troubleshoot issues in collaboration with users, sector partners, and vendors. Develop and recommend corrective actions.
 * Collaborate on requirements and planning for network and network management hardware / software purchasing including upgrades, licenses, warranties, tech support and refreshes.
 * Document designs using detailed schematics, diagrams, specifications and maintain system documentation, work instructions as needed. Prepares security documentation for hand-offs to Cyber Security.
 * Plan and report project status as required for recurring and non-recurring efforts.
 * Work under minimal direction and independently determine and develop approach to solutions.
 * Lift and move equipment up to 50 pounds.
 * Work after hours, and weekends, as needed.