Principal System Administrator - Portsmouth, RI

Date Posted:

2025-10-22

Country:

United States of America

Location:

RI101: 1847 W Main Rd 1847 W. Main Road Nimitz Building, Portsmouth, RI, 02871 USA

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:

DoD Clearance: Secret

At 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:

• 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.
• 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.
• Ensure compliance with security requirements (DFARS, RMF, NIST Cybersecurity Framework) in partnership with Cybersecurity professionals to maintain compliance requirements. 
• Work full time in a face-paced environment, in an on-site position, inside a DoD closed area.
• Support efforts both planned and unplanned that may require occasional commitment outside standard work hours.
• Must be able to travel 25% travel (mostly to our Marlborough, MA office).
• 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.
• 100% on Raytheon on-site position

Qualifications You Must Have:

• Typically requires bachelor’s degree and minimum of 5 years of prior relevant experience or master’s degree and 3 years of relevant experience 
• 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.)
• Experience administrating Microsoft Windows OSs and/or RedHat Enterprise Linux OSs.
• Experience as a Splunk administrator. 

Qualifications We Prefer:

• Strong leadership, teamwork, communication (written and oral), collaboration, and organizational skills
• Experience with managing ADDS, DFS, WDS, WSUS, MECM/SCCM, MDT, PXE, PKI, and Kerberos.
• Experience with Linux and Windows integration tools (Centrify, Samba, SSSD, NIS).
• Experience with virtualization, VMWare vCenter, vSphere, Horizon, and ESXi and/or other virtual computing methods.
• Experience with scripting (PowerShell, Perl, Bash, Python, and C Languages).
• Experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF.
• Strong understanding of networking concepts.  

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 Eligibility

• 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 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,