Principal Network Engineer

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: Some of our competitive benefits package includes: 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 buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection  Birth, adoption, parental leave benefits  Ovia Health, fertility, and family planning   Adoption Assistance            Autism Benefit   Employee Assistance Plan, including up to 10 free counseling sessions   Healthy You Incentives, wellness rewards program  Doctor on Demand, virtual doctor visits   Bright Horizons, child and elder care services  Teladoc Medical Experts, second opinion program    And more!  Learn More & Apply Now! *Please ensure the role type (defined below) is appropriate for your needs before applying to this role. Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. Collins Aerospace m