Principal Network Engineer - Enterprise & SD-WAN Expert

Northrop Grumman; United States; On-site; USD 150,000 - 190,000; Full time

Job summary

Northrop Grumman in Sunnyvale, CA is seeking a Principal Network Engineer to design, deploy, and support enterprise network solutions. You will work on Cisco routers/switches, firewalls, and wireless systems, coordinating with vendors and internal teams to ensure high availability and security aligned with DoD/NIST guidelines.

The role requires on-site work at the Sunnyvale campus, with 10% travel. Candidates should have strong TCP/IP knowledge and WAN/LAN experience, and the ability to mentor

Qualifications

• Associate's degree with 7 years of relevant experience or higher education with fewer years
• Bachelor's degree is preferred with relevant experience
• Master's degree with 3+ years of relevant experience or PhD with 1 year
• Experience with managed network solutions and large-scale technical network engineering projects
• Experience with Cisco Router and Switch equipment, Firewall Cisco Network Equipment, Cisco Wireless Technology

Responsibilities

• Plan, design, and deploy site and enterprise-level network solutions per Northrop Grumman standards
• Produce design review packages including schematics and BOMs
• Install and commission Cisco core network equipment (routers, switches, firewalls, wireless controllers)
• Coordinate fiber-optic and copper cabling projects with suppliers and internal teams
• Provide Tier 2/3 troubleshooting for WAN, LAN, and SD-WAN ensuring high availability
• Maintain CMDB documentation and liaise with vendors for escalations
• Translate business requirements into robust network solutions for Sunnyvale customers
• Implement and enforce security policies per DoD and NIST guidance

Skills

Cisco Routers

Cisco Switches

Firewall Cisco

TCP/IP

LAN/WAN

SD-WAN

Vendor liaison

Education

Bachelor's degree in related field

Master's degree in related field

PhD in related field

High School Diploma or equivalent

Tools

CMDB

SD-WAN tools

Job description

Northrop Grumman in Sunnyvale, CA is seeking a Principal Network Engineer to design, deploy, and support enterprise network solutions. You will work on Cisco routers/switches, firewalls, and wireless systems, coordinating with vendors and internal teams to ensure high availability and security aligned with DoD/NIST guidelines.

The role requires on-site work at the Sunnyvale campus, with 10% travel. Candidates should have strong TCP/IP knowledge and WAN/LAN experience, and the ability to mentor