Senior Principal Network Engineer, onsite, Marlborough, MA

Job ID: 01873227Posted: Posted 30+ Days AgoStart Date: 2026-09-14Location: US-MA-MARLBOROUGH-MA3 ~ 1001 Boston Post Rd ~ BLDG 3Country: United States of AmericaTime Type: Full timeDate Posted:2026-09-14 Country:United States of America 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 1Senior Principal Network Engineer (P4)Raytheon Digital TechnologyClassified Infrastructure ServicesMarlborough, MA – Onsite PositionAt 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 networkDevelop 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 platformsPropose 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 a University Degree or equivalent experience and minimum 8 years prior relevant experience, or An Advanced Degree in a related field and minimum 5 years' experience.Knowledge of configuration and troubleshooting of Cisco routers, switches, firewalls, and intrusion detection systems, including software upgrades.Active and transferable U.S. government issued Top 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:Certifications in Security+ within 6 months and Cisco Certified Network Associate (CCNA) is highly desired within a year.Experience with current cabling and fiber standardsExperience with access control list, security posture, and vendor best practices.Experience with Visio diagramming and design capabilities1-2 years of experience with network management software.Willingness and availability to travel domestically as needed.Knowledge of configuration and troubleshooting of encryption devices.Effective customer service skills, including oral and written communications.Experience with platforms such as IP telephony, NTP servers, GemOne, and SolarWinds.Ability to work under time constraints.Experience with classified computing, STIG compliance, and network refreshesCurrent DoD Top Secret level security clearanceWhat We OfferOur values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.Relocation Eligibility – This role is relocation eligible if the selected applicant meets company policy criteria.Learn More & Apply NowPlease consider the following role type definition as you apply for 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. For onsite and hybrid roles, commuting to and from the assigned site is the employee’s personal responsibility.As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.The salary range for this role is 107,500 USD - 204,500 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms:Click on this link to read the Policy and Terms