Sr Principal Network Engineer

We are looking for you to join our team as a Sr Principal Network Engineer based out of San Diego, CA. As a Sr Principal Network Engineer at Northrop Grumman you will have a challenging and rewarding opportunity to be a part of our Enterprise-wide digital transformation. Through the use of Model-based Engineering, DevSecOps and Agile practices we continue to evolve how we deliver critical national defense products and capabilities for the warfighter. Our success is grounded in our ability to embrace change, move quickly and continuously drive innovation. The successful candidate will be collaborative, open, transparent, and team-oriented with a focus on team empowerment & shared responsibility, flexibility, continuous learning, and a culture of automation.
What You'll get to Do:

Thrive in a fast-paced work environment with high expectations, significantly diverse assignments, minimal supervision, and collaborative/team settings across all levels
Work closely with engineers and technicians in both a virtual and physical lab environment
Advise on integration of new emerging industry technologies to the program's systems
Implement engineering changes to the system as required
Review, analyze, and incorporate technical requirements into end-to-end system architectures
Responsible for completing the network designs and coordinating with the peers, SMEs, and government engineers
Assist proposal development by providing data inputs
Execute engineering projects on schedule in a DevOps environment
Occasional travel may be required
Qualifications:
Basic Qualifications:

Bachelors degree in science, engineering, or related discipline with 8 years of experience; OR 6 years of relevant experience with a Masters degree; OR 4 years of experience with STEM PhD degree
An additional 4 years of relevant experience can be considered in lieu of a Bachelor degree.

Solid understanding of IP address planning, VRFs, ACLs, encapsulation, switching, routing, QoS, NAT, and application protocols
Experience with authentication and data encryption methods, to include securing communications at either the datalink or network layer
Experience with IT infrastructure management/monitoring tools (e.g., WhatsUpGold, Splunk, SolarWinds, Cisco Secure Servers - ISE) and techniques
Experience using Cisco Call Managers (or equivalent), and an understanding of the VoIP stack, from an OSI modeling perspective
Possess one or more of the following certifications (or equivalent): CCNA, CCNP, or JNCIP-ENT
Must be a US Citizen
CLEARANCE: A current/active DoD Secret clearance.
Must currently have SAP or must be able to obtain and maintain SAP
Preferred Qualifications:

Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, FedRAMP or JSIG information system environments
Familiarity in the Risk Management Framework (RMF) Cybersecurity Lifecycle
Demonstrated success investigating root cause analysis and providing recommendations to others
Experience with async/sync data replication along with automated failure recovery, to include using technologies such as HSRP, VRRP, VM clustering, or load balancers • Multi-OS experience, with specific knowledge of RHEL, CentOS, or Windows Server
Experience with virtual machines and hypervisors, such as ESX, KVM or Xen
Experience with terrestrial and space-based network architectures, designs, and implementation techniques
Experience with IDSs/IPSs, or ZBFWs
Experience with HAIPE encryption
Basic network knowledge in cloud/hybrid infrastructures and related technologies
Proficiency in network modeling with programs such as Visio, MagicDraw, or Cameo
Current DoD 8570/8140 IA Certification (Security+CE or similar) or ability to obtain within 6 months of hire
Primary Level Salary Range: $129,300.00 - $193,900.00The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

Client-provided location(s): San Diego, CA

Job ID: NorthropGrumman-R10224828

Employment Type: OTHER

Posted: 2026-03-07T20:03:01