Principal System Administrator (onsite)

At 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 us and help shape the future of aerospace and defense 

Empowering a global business. Providing affordable solutions. Delivering competitive discriminators by unleashing deep expertise. These are just some of the many ways the Digital Technology team at Raytheon Technologies creates success for our customers. Joining our team will allow you to collaborate with Raytheon organizations to enable business growth, speed, and agility through business innovation, technical proficiency, and operational excellence. 

Our Digital Technology (DT) organization ensures that Raytheon teammates across the globe can 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. 

Principal System Administrator based in Huntsville, AL, internally known as Principal Analyst, Information Workplace Services 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. 

Must be able to obtain a final U.S. government issued Secret S

What You Will Do

• Must be able to obtain Department of Defense Directive (DODD) 8140 /8570 Certification requirements (CompTIA Security+CE or equivalent certification) within 6 months of start date.

• Serve as a Principal Systems Administrator supporting Windows and Linux enterprise environments, responsible for the design, implementation, maintenance, patching, and troubleshooting of Windows Server, Windows 11, RHEL 7/8/9, and virtualized infrastructure within a large-scale, mission-critical environment operating 24x7x365. 

• Experience with Windows and Linux patching, vulnerability remediation, and compliance activities, including STIG/EVAL STIG implementation, SCAP/ACAS support, log collection, and close coordination with Cyber Security teams to maintain continuous compliance with DoD and regulatory requirements. 

• Design, deploy, and maintain virtual infrastructure using VMware ESXi and vCenter, including VM lifecycle management, host upgrades, performance tuning, and support of critical production workloads. 

• Engineer and sustain enterprise imaging, deployment, and automation solutions, including MECM/SCCM, PXE, Windows imaging, in-place OS upgrades, and scripted software deployment using PowerShell and automation frameworks. 

• Administer and support core Windows services and integrations, including Active Directory, Group Policy, secure system configurations, certificate-based authentication, and customized user environments. 

• Collaborate across Digital Technology, Engineering, Cyber Security, DevSecOps, Networking, Storage, and Tools teams to resolve complex infrastructure, integration, and compliance challenges, while operating independently with minimal oversight. 

• Support both planned and emergent operational needs in a fully on-site DoD closed-area environment, including occasional after-hours support and up to 10% travel as required to meet program objectives. 

• Work independently, prioritize competing demands, and execute with minimal direction in a fast-paced operational environment. 

• Full time 100% onsite position. 

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' experience 

• Experience administering and securing Windows and RHEL servers 

• Experience with VMware virtualization 

• Experience with securing system configurations, system hardening

• Experience with PowerShell scripting An active and in-scope Secret U.S. government issued security clearance is required for consideration. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​

• An active and in-scope Secret U.S. government issued security clearance is required for consideration. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​​

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. 

• Experience supporting or integrating with DevSecOps environments, including Kubernetes, Rancher, and artifact repositories. 

• Experience with SQL Server, including clustered configurations. 

• Prior experience supporting DoD, defense, or highly regulated environments

• Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA) Security+CE or equivalent certification) within 6 months of start date ​

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.