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# Principal System Administrator- Will sponsor a clearance and will support three locations.

- **Company:** RTX
- **Location:** Andover, MA, United States
- **Experience:** Experienced
- **Salary:** $86,800.0 - $165,200.0
- **Contract:** Contract
- **Skills:** Microsoft Windows, Active Directory, Cyber Security, System Configuration, Linux, Digital Technology, VMware ESX Servers, Microsoft SQL Server, System Center Configuration Manager, Windows Servers, NetApp Applications, Performance Tuning, Windows PowerShell, Red Hat Enterprise Linux, Security Content Automation Protocol, Software Deployment, Systems Integration, VMware Infrastructure, Virtualization Technology, VMware Virtualization, Software Vulnerability Management, High Performance Computing, Kubernetes, Rancher, Windows Services, Splunk, Network Server, Devsecops
- **Published:** July 22, 2026
- **Apply:** https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-MA-ANDOVER-AN1--350-Lowell-St--AN1-ESSEX-BLDG/Principal-System-Administrator--Will-sponsor-a-clearance-and-will-support-three-locations_01860883

## About the Role

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, Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date, Typically, bachelor's degree with 5+ years of relevant experience, or an advanced degree with 3+ years of relevant experience.
Able to obtain a U.S. government issued secret security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Must have an interim clearance to start
Experience administering and securing Windows and RHEL servers
Experience with VMware virtualization
Experience with securing system configurations, system hardening
Experience with PowerShell scripting

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.

## Description

Serve as a Principal Systems Administrator supporting Linux enterprise and Windows 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.
This position requires the ability to support multiple programs at multi locations; Woburn, MA Tewksbury, MA and Andover, MA as business dictates.
Must have an interim clearance to start


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