Principal System Administrator

Job ID: 01872124Posted: Posted TodayStart Date: 2026-09-08Location: US-GA-ATLANTA-100 ~ 100 Galleria Pkwy SE ~ GALLERIACountry: United States of AmericaTime Type: Full timeDate Posted:2026-09-08 Country:United States of America Location:US-GA-ATLANTA-100 ~ 100 Galleria Pkwy SE ~ GALLERIA 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 1At 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.What You Will Do: Provide IT systems administration in a heterogeneous RedHat Enterprise/Microsoft Windows and environment. Image and configure new IT assets for deployment to end users. Manage the end-to-end lifecycle of IT assets, including processing returned assets into the database and ensuring accurate inventory records. Provide technical support by diagnosing and resolving end-user issues related to hardware and software. Manage virtualized environments. Utilize your experience with Windows Server internals to include DNS, DHCP, AD, and server replication methods.   Utilize your experience with hardware RAID, hardware and software encryption and server management tools. Utilize your experience in data backup and restore, using industry best practice. Manage and update IT service tickets, ensuring timely resolution and appropriate prioritization within established SLAs. Provide documentation and training on advanced IT processes and procedures and other tasks as assigned. Support other IT operations and tasks as required to ensure effective service delivery and alignment with organizational goals. Work with Cybersecurity professionals to maintain security requirements.   Obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date.  Systems are operational 24x7 and occasionally require work effort beyond standard work hours.  Travel  required as business needs dictate to other US Domestic locations, up to 10% per year.  Work full time, 100% Onsite position. Qualifications You Must Have: Typically requires a University degree or equivalent experience and a minimum of 5 years of prior relevant experience or an Advanced Degree in a related field and minimum 3 years experience.Active and transferable U.S. government issued Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.Windows and/or Linux experience. Experience in one of the following: Active Directory, VMware, networking administration experience. Qualifications We Prefer: Experience with Continuous Integration\Continuous Delivery Tools such as Gitlab, Jenkins, and Azure DevOps. Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification and an Operating System Certification). Experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF, data storage, NAS, and SAN technologies and solutions. Experience using VMWare vCenter, vSphere, and ESX and/or other virtual computing methods. Experience with Microsoft WSUS, MECM, and/or Exchange. 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.Learn More & Apply Now!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