Date Posted:2025-10-24Country:United States of AmericaLocation:MA803: Marlborough, MA Building 3 1001 Boston Post Road Building 3, Marlborough, MA, 01752 USAPosition 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: DoD Clearance: SecretAt 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. Principal System Administrator (SME) in infrastructure Workplace Services, collaborate with teams to support fast-paced, critical programs with classified information system capabilities. Success in this role means you can develop, implement and maintain secure, cost-efficient environments across various classified programs. Program teams rely on your collaboration and guidance to define computing requirements and create end-to-end solutions to solve complex IT infrastructure problems.What You Will Do:<ul><li>As a Subject Matter Expert (SME), possessing in-depth knowledge and extensive experience in designing, implementing, sustaining and troubleshooting, you will maintain and support RHEL (7,8,9), Windows Servers (2019, 2022), Desktops (10,11), and Virtual OSs on a large-scale enterprise network whose systems are operational 24x7x365.</li><li>Integrate and partner with customer(s), software developers, security, storage architects, system administrators, network engineers, tools and high-performance computing teams to solve complex infrastructure problems.</li><li>Ensure compliance with security requirements (DFARS, RMF, NIST Cybersecurity Framework) in partnership with Cybersecurity professionals to maintain compliance requirements. </li><li>Work full time in a face-paced environment, in an on-site position, inside a DoD closed area.</li><li>Support efforts both planned and unplanned that may require occasional commitment outside standard work hours.</li><li>Must be able to travel 25% travel (mostly to our Marlborough, MA office).</li><li>Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ or equivalent certification) within 6 months of start date.</li><li>100% on Raytheon on-site position</li></ul>Qualifications You Must Have:<ul><li>Typically requires bachelor’s degree and minimum of 5 years of prior relevant experience or master’s degree and 3 years of relevant experience </li><li>The ability to obtain and maintain a US security clearance prior to the start date. (US citizenship is required as only US citizens are eligible for a security clearance.)</li><li>Experience administrating Microsoft Windows OSs and/or RedHat Enterprise Linux OSs.</li></ul>Qualifications We Prefer:<ul><li>Strong leadership, teamwork, communication (written and oral), collaboration, and organizational skills</li><li>Experience with managing ADDS, DFS, WDS, WSUS, MECM/SCCM, MDT, PXE, PKI, and Kerberos.</li><li>Experience with Linux and Windows integration tools (Centrify, Samba, SSSD, NIS).</li><li>Experience with virtualization, VMWare vCenter, vSphere, Horizon, and ESXi and/or other virtual computing methods.</li><li>Experience with scripting (PowerShell, Perl, Bash, Python, and C Languages).</li><li>Experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF.</li><li>Strong understanding of networking concepts.  </li></ul>What We Offer:Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation.Relocation EligibilityLearn More &amp; Apply Now!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 &amp; 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 82,000 USD - 164,000 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 <a target="_blank" href="http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice">link</a> to read the Policy and Terms