Network Engineer, Principal Specialist, Onsite, Marlborough, MA

Job ID: 01848562Posted: Posted 30+ Days AgoStart Date: 2026-06-05Location: US-MA-MARLBOROUGH-MA3 ~ 1001 Boston Post Rd ~ BLDG 3Country: United States of AmericaTime Type: Full timeDate Posted:2026-06-05 Country:United States of AmericaLocation:US-MA-MARLBOROUGH-MA3 ~ 1001 Boston Post Rd ~ BLDG 3Position Role Type:OnsiteU.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 - CurrentSecurity Clearance Status: Active and existing security clearance required on day 1Network Engineer, Principal Specialist (P3)Raytheon Digital TechnologyClassified Infrastructure ServicesNetwork Engineering TeamMarlborough, MA – Fully OnsiteActive Us DoD Secret Clearance requiredAt RTX, the world 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 this high impact team as a Network Engineer, Principal Specialist, (P3) to ensure the smooth operation of classified network infrastructure at our Raytheon locations. The installation, maintenance, support, and monitoring of the network infrastructure will be performed. Candidate must have a solid background supporting networks. This role will be onsite and based in Marlborough, MA and may require occasional travel to other local and US Domestic locations approximately 5-10% of the time. Relocation support is provided for the applicant if they qualify per company policy.What You Will Do: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. Prepares or ensures that appropriate network documentation exists, including operational instructions, technical diagrams, and other documentation. Where no documentation exists, new documentation will be created. Provide regular monitoring and network analysis regarding short- and long-range planning for in-house systems. Assist with coordination of third-party maintenance for network equipment or with vendors for third-party support. Network designs that include selection of hardware and software packages, hierarchical architecture, and geographical limitations. Work with program engineers to resolve networking problems in tactical environments. Assist in the overall performance and capability of technical team through mentoring, training, and knowledge sharing. Willingness and availability to work outside normal business hours (evenings and weekends) as needed. Must be able to work with general supervision and follow established procedures. Qualifications You Must Have: Typically requires a University Degree or equivalent experience and minimum 5 years prior relevant experience, or An Advanced Degree in a related field and minimum 3 years' experienceExperience with configuration and troubleshooting of Cisco routers, switches, firewalls, and intrusion detection systems, including software upgrades. Experience with current cabling and fiber standards. Active and transferable U.S. government issued US DoD Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearanceQualifications we prefer: Willingness and availability to travel domestically as needed. Experience with access control list, security posture, and vendor best practices. Experience with Visio diagramming and design capabilities.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. Certifications in Security+ within 6 months and Cisco Certified Network Associate (CCNA) is highly desired within a year.Ability to work under time constraints. Experience with classified computing, STIG compliance, and network refreshes.What 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.This role is eligible for relocation if company policy criteria is met.Learn More and Apply now!Please ensure the role type defined below is appropriate for your needs before applying to this role. This position is classified as:.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.Candidates will learn more about role type and current site status throughout the recruiting process. For onsite and hybrid roles, commuting to and from the assigned site is the employee’s personal responsibility.Clearance Information: This position requires an active US Secret security clearance. We will sponsor the clearance application process, and you must be granted an interim before Day One. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: .RTX Corporation is an Aerospace and Defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace Systems, Pratt & Whitney, and Raytheon. Its 185,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, VA. 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 86,800 USD - 165,200 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