Principal Network Engineer

RTX (Raytheon); California (MO); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Flexible work weeks

Medical, dental, and vision insurance

3 weeks vacation

401(k) with matching

Tuition reimbursement

Student loan repayment

Life insurance & disability

Job summary

RTX is seeking a Principal Network Engineer for the CMCC program at Beale AFB, CA. You will design, secure, and maintain scalable network environments including LAN, WAN, and cloud-based networks, ensuring high availability and strong security postures.

You must hold an active TS/SCI clearance and possess NIST-8570-aligned certifications. The role requires experience with Cisco/Juniper/Palo Alto devices and strong documentation skills.

Qualifications

• Active TS/SCI clearance required prior to start date with ability to obtain SAP clearance after start
• NIST-8570 certifications such as Security+, CCNA/CCNP/CISSP or equivalent are required
• Experience with TCP/IP, DNS, DHCP, VLANs, VPNs
• Experience with enterprise network hardware/software (Cisco/Juniper/Palo Alto)
• Degree in STEM and 5+ years of relevant experience (or advanced degree with 3+ years)

Responsibilities

• Design, secure, and maintain LAN/WAN infrastructures and cloud networking solutions
• Configure, monitor, and troubleshoot switches, routers, firewalls, and network appliances
• Implement and manage network security protocols including encryption and IDS/IPS
• Administer and optimize virtualized networks (SD-WAN, hybrid cloud)
• Perform network monitoring to ensure high availability and performance
• Maintain Cisco & Juniper configurations, VLANs, and static routing
• Conduct system upgrades, patches, and firmware updates
• Develop and maintain network diagrams and documentation
• Collaborate with cybersecurity teams to enforce security measures
• Provide root-cause analysis and troubleshoot complex network issues
• Support cross-domain solutions in secure environments

Skills

Active TS/SCI clearance

Network design

LAN/WAN

Documentation

Education

Bachelor's degree in STEM

Advanced degree in related field

Tools

Cisco

Juniper

Palo Alto

Ansible

Python

Job description

Date Posted: 2026-09-15

Country: United States of America

Location: US-CA-BEALE-AFB-CUST ~ 7400 Spencer Paul Dr ~ BEAL AFB (External Site)

Position Role Type: Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance Type: TS/SCI - Current

Security Clearance Status: Active and existing security clearance required on day 1

Raytheon Company, Managed by Collins Aerospace

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world's most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

Collins Aerospace is seeking a Principal Network Engineer to support the design, implementation, administration, and maintenance of secure and scalable network environments. This position supports the Common Mission Control Center (CMCC) program, located at Beale AFB, CA.

What You Will Do

• Design, secure, and maintain network infrastructures, including Local Area Networks (LAN), Wide Area Networks (WAN), and cloud-based networking solutions
• Configure, monitor, and troubleshoot switches, routers, firewalls, and other network appliances
• Implement and manage network security protocols, including encryption, intrusion detection, and firewalls
• Administer and optimize virtualized network environments, including SD-WAN and hybrid cloud solutions
• Perform network monitoring and analysis to ensure high availability, reliability, and performance of services
• Maintain Cisco & Juniper network configurations, VLANs segregation, and static routing
• Conduct system upgrades, patches, and firmware updates on network equipment
• Develop and maintain detailed network documentation, including diagrams, configurations, and procedure
• Collaborate with cybersecurity teams to implement and maintain network security measures
• Provide technical expertise for troubleshooting and resolving complex network issues, including root cause analysis
• Support integration and sustainment of cross-domain solutions (CDS) in secure environments

Qualifications You Must Have

• Active and transferable DoD Top Secret / SCI U.S. government issued security clearance is required prior to start date with the ability to obtain SAP clearance and access after start
• Active certification to comply with NIST-8570 (e.g., Security+, CCNA, CCNP, CISSP, etc.)
• Experience with networking fundamentals, including TCP/IP, DNS, DHCP, VLANs, and VPNs
• Experience with enterprise-grade network hardware and software (e.g., Cisco, Juniper, Palo Alto, or similar)
• Experience configuring and managing firewalls, routers, and switches
• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience

Qualifications We Prefer

• Experience with network automation tools (e.g., Ansible, Python)
• Knowledge of virtualization technologies (e.g., VMware, Hyper-V, or KVM) and their integration into network environments
• Experience with monitoring tools such as SolarWinds, Splunk, or Wireshark.
• Familiarity with Software-Defined Networking (SDN) and Network Function Virtualization (NFV)
• Knowledge of enterprise wireless networking solutions and troubleshooting.
• Experience with configuring and deploying network solutions in classified environments
• Familiarity with cybersecurity tools and processes, including ACAS, HBSS, and STIG compliance
• Strong understanding of cross-domain solutions and secure information transfer protocols
• Excellent communication and documentation skills to support technical processes and documentation
• Ability to work collaboratively in a dynamic, team-oriented environment while meeting tight deadlines.

What We Offer

• Flexible work weeks: 9/80A, 5/40; Flexible work Hours: Core hours, Modified time
• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage

Optional coverages you can