Senior Principal Network Engineer, onsite, Marlborough, MA
RTX (Raytheon)
- Location
- US-MA-MARLBOROUGH-MA3 ~ 1001 Boston Post Rd ~ BLDG 3
- Work model
- On-Site
- Level
- Principal
- Posted
- Sep 14, 2026
About this role
Location: US-MA-MARLBOROUGH-MA3 ~ 1001 Boston Post Rd ~ BLDG 3

 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 (P4) Raytheon Digital Technology Classified Infrastructure Services Marlborough, MA – Onsite Position At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring 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. Our team solves tough, meaningful problems that create a safer, more secure world. The Classified Infrastructure Services department provides expertise to programs in Networking, High Performance Computing, and Storage & Data Protection. Join this high impact team as a Senior Principal Network Engineer (P4) (Manager, Information Workplace Services) to ensure the smooth operation of classified Proprietary Program network infrastructure at our Raytheon/RTX locations. The installation, maintenance, support, and monitoring of the network infrastructure will be performed. Candidates must have advanced background supporting networks. This role is in Marlborough, MA and the role will be onsite. This role is relocation eligible if the selected applicant meets company policy criteria. 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