Senior Principal Network Engineer, onsite, Tucson, AZ

Date Posted: 2026-07-14 Country: United States of America Location: US-AZ-TUCSON-928 ~ 1151 E Hermans Rd ~ MULTI PURPOSE FAC 928 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: Secret - Current Security Clearance Status: Active and existing security clearance required on day 1 Senior Principal Network Engineer Manager, Information Workplace Services - P4 Raytheon Digital Technology - Classified Information Services Onsite - Tucson, AZ Active US Secret Clearance required 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.  Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense. The Classified Infrastructure Services department provides expertise to programs in Networking, High Performance Computing, and Storage & Data Protection. As a Principal Network Engineer for this high-impact team, you will provide Subject Matter Expertise within the networking discipline. You will support operational teams by bringing your advanced networking knowledge and troubleshooting ability. As a Principal Network Engineer, you will research new technologies, collaborate with other organizations, and help drive the network roadmap and vision. This is an on-site position which will be based in the Tucson, AZ office and may require occasional travel to other local and US Domestic locations approximately 30% of time. Relocation support will be available if the selected applicant meets company policy. Focuses on Inter-team communication and organization of clear documentation of network details to support and enable smooth project growth. Maintains smooth operation of voice and data networks. Plans, evaluates, coordinates, and performs installation and/or reconfiguration of hardware and software elements of data and/or voice communication network Develop technical expertise in all areas of voice and data networks hardware and software interconnection and interfacing, such as switches, routers, firewalls, authentication servers, encryptors etc. Maintains network management software platforms Propose solutions to management to ensure all communications requirements based on future needs and current usage, configuring such solutions to optimize cost savings aligning with future requirements factoring in redundancy and required network uptime. What you will Do: Provide advanced knowledge in support of (software/firmware/hardware) LAN/WAN components including routers, switches, firewalls (Cisco/Palo Alto). Monitor, analyze, troubleshoot, and optimize network system performance, proactively identifying and quickly resolving service impacting issues. Review system vulnerability assessments to ensure compliance with recognized industry standards and best practices. Drive and/or participate in projects in support of installation and/or improvement to voice, video, and network infrastructure. Produce, update, and generally improve technical documentation to support security requirements and operational support of systems. Propose to management and configure network solutions, meeting all communications requirements based on future needs, current usage, cost savings, and availability. Provide regular monitoring and network analysis regarding short- and long-range planning for network infrastructure. Assist with coordination of third-party maintenance and procurement for network equipment or with vendors for third-party support. Assist in the overall performance and capability of technical teams through mentoring, training, and knowledge sharing. Willingness and availability to work outside normal business hours (evenings and weekends) as needed. Willingness and availability to travel to local and other U.S domestic sites approximately 30% of time. Must be able to work with general supervision and follow established procedures. What you will Learn: Apply Network Engineering expertise to facility moves, new construction buildings, supporting classified programs in multiple locations across Raytheon. Advanced knowledge of industry leading network products and Network Design/Architecture for all programs. Qualifications You Must Have : Typically requires bachelor’s degree or equivalent experience, and a minimum of 8 years relevant experience, or an advanced Degree and a minimum of 6 years’ experience. Active and transferable U.S. government issued Secret DOD security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.  Qualifications We Prefer:      Advanced knowledge of configuration and troubleshooting of routers, switches, firewalls, and authentication servers.   Knowledge of configuration and troubleshooting of Cisco routers, switches, firewalls, and intrusion detection systems, including software upgrades. Experience with platforms such as Cisco ISE, Cisco Call Manager, NTP servers, General Dynamics GemOne, and SolarWinds.        Experience configuring, updating, and troubleshooting encryption devices and intrusion detection systems