[Skip to main content](#main-content) [ OpenNash ](https://opennash.com/) / [Jobs](https://jobs.opennash.com/) [ 01 Search jobs](https://jobs.opennash.com/search/)[ 02 Companies](https://jobs.opennash.com/explore/)[ 03 Hiring report](https://jobs.opennash.com/reports/hiring/)[ 04 AI assistants](https://jobs.opennash.com/connect/)[ 05 How it works](https://jobs.opennash.com/methodology/) RTX # Sr. System Administrator (ONSITE) On-site Full-time Senior individual contributor Administrative Listed on RTX’s official careers site. Posted November 10, 2026. Check that it is still open and apply there. [Apply on RTX’s careers site →](https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-MA-ANDOVER-AN5--356-Lowell-St--AN5-BRISTOL-BLDG/Sr-System-Administrator--ONSITE-_01888040) [OpenNash Jobs](https://jobs.opennash.com/) / [RTX](https://jobs.opennash.com/companies/rtx/) / Sr. System Administrator (ONSITE) ## Job description ### Date Posted 2026-11-09 Country: United States of America Location: US-MA-ANDOVER-AN5 ~ 356 Lowell St ~ AN5 BRISTOL BLDG 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: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required on day 1 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. ### Job Description Our Digital Technology (DT) organization ensures that Raytheon teammates across the globe are able to communicate, collaborate and innovate for customer success. We create leading-edge technology solutions to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world. Sr. System Administrator based in Andover, MA, internally known as Sr. Information Workplace Services professional who will collaborate and support exciting, 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 Provide IT systems administration in a heterogeneous Microsoft Windows and RedHat Enterprise Linux environment. Understanding and knowledge of Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods. Work as a team member in a fast-paced technological environment. Work with Cybersecurity professionals to maintain security requirements. Provide documentation and training on advanced IT processes and procedures and other tasks as assigned. Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within a reasonable amount of time Systems are operational 24x7 and occasionally require work effort beyond standard work hours. Full time 100% onsite positioned in Andover MA Qualifications You Must Have: Typically requires A University Degree or equivalent experience and minimum - 2 years of prior relevant experience, or an Advanced Degree in a related field - Ability to obtain Interim U.S. government issued Secret security clearance is required prior to start. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Experience administering and securing Windows and RHEL servers Experience with securing system configurations, system hardening Qualifications We Prefer: Experience serving as a technical SME or primary point of contact for patching, vulnerability remediation, or compliance initiatives. Hands-on experience with MECM/SCCM, PXE boot services, OS imaging, and automated software deployment frameworks. Familiarity with NetApp storage and/or HPC environments. Experience with enterprise Windows services, including Active Directory, Group Policy, and identity integration. Familiarity with cybersecurity and compliance tooling, such as ACAS, SCAP, Splunk, STIG Viewer, and audit support processes. ### What We Offer Our 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 assistance is available. Relocation assistance available, provided final candidate meets eligibility requirements Learn More & 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. 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 75,800 USD - 144,200 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 ## At a glance - Posted by the employer: Nov 10, 2026 - First seen by OpenNash: Nov 11, 2026 - Last checked: Nov 11, 2026 - Listed for: 1 day - Work arrangement: On-site - Employment type: Full-time[Apply on RTX’s careers site →](https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-MA-ANDOVER-AN5--356-Lowell-St--AN5-BRISTOL-BLDG/Sr-System-Administrator--ONSITE-_01888040) ## Hiring at RTX - Open jobs: 4,634 - New in the last 7 days: After two weekly collections - Tracked since: Jul 14, 2026 [All RTX jobs](https://jobs.opennash.com/companies/rtx/) · [Weekly hiring report](/reports/hiring/) ## More jobs at RTX ### [Staff Tech, Engineering Lab Assistant/Inspector (Onsite)](https://jobs.opennash.com/companies/rtx/jobs/75edce0bc57ad06714f5/) CEDAR RAPIDS, IA, US ### [System Administrator - Secret clearance](https://jobs.opennash.com/companies/rtx/jobs/c56e84a39acd6e868771/) ### [System Administrator COMPANY WILL SPONSOR (ONSITE)](https://jobs.opennash.com/companies/rtx/jobs/e539583946d0e5351656/) ### [System Administrator I - Onsite](https://jobs.opennash.com/companies/rtx/jobs/54100fc6b09c2a6d39ac/) MIDDLETOWN, RI, US ### [System Administrator Intern (Summer 2027)](https://jobs.opennash.com/companies/rtx/jobs/2c79ad466177e9f7d7fa/) MIDDLETOWN, RI, US ## Similar jobs at other companies ### [Linux Systems Administrator / Secret / Onsite: Huntsville, AL](https://jobs.opennash.com/companies/lockheed-martin/jobs/a89d39f3199cf70607af/) Lockheed Martin · Huntsville, AL ### [Sr. System Administrator / TS/SCI / Onsite: CO](https://jobs.opennash.com/companies/lockheed-martin/jobs/7f46c681dd1776bcf32a/) Lockheed Martin · Littleton, CO ### [System Administrator II - Onsite](https://jobs.opennash.com/companies/bae-systems/jobs/c70cfd50c3b657f98276/) BAE Systems · Nashua, New Hampshire, United States ### [OnBase Infrastructure Administrator (Onsite Hybrid)](https://jobs.opennash.com/companies/ntt/jobs/1505e2df42d234922e13/) NTT · Dallas, TX, US, United States ### [Senior Systems Administrator - Onsite](https://jobs.opennash.com/companies/bae-systems/jobs/0261fdea6d3cd8f013e9/) BAE Systems · Hudson, New Hampshire, United States [Administrative jobs](/functions/administrative/) OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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