> Markdown version of [/jobs/ext/4583598-principal-windows-linux-systems-administrator-will-sponsor-a-clearance](https://www.wearedevelopers.com/jobs/ext/4583598-principal-windows-linux-systems-administrator-will-sponsor-a-clearance). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Principal Windows- Linux Systems Administrator- Will sponsor a clearance

- **Company:** RTX
- **Location:** Andover, MA, United States
- **Experience:** Experienced
- **Salary:** $95,500.0 - $181,700.0
- **Contract:** Contract
- **Skills:** Microsoft Windows, Active Directory, Cyber Security, System Configuration, Linux, Digital Technology, VMware ESX Servers, Linux System Administration, System Center Configuration Manager, Windows Servers, NetApp Applications, Performance Tuning, Windows PowerShell, Red Hat Enterprise Linux, Security Content Automation Protocol, Service Pack, Software Deployment, Systems Integration, VMware Infrastructure, Virtualization Technology, VMware Virtualization, Software Vulnerability Management, Scripting, High Performance Computing, SC Clearance, Kubernetes, Rancher, Vcenter, Windows Services, Splunk, Network Server, Devsecops
- **Published:** November 5, 2026
- **Apply:** https://www.careerbuilder.com/job-details/principal-windows-linux-systems-administrator-will-sponsor-a-clearance-andover-ma--24dca820-25e8-486b-a1a9-8dc00e5103fb

## About the Role

Linux Administration, Microsoft Windows System Administration, United States Citizen, Security Clearance, RTX, Aerospace and Defense, Research & Development (R&D), Microsoft Windows System Administration, Software Patches, Red Hat Linux Operating System, 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 DoD interim clearance to start. Will set a start date one interim clearance is issued.
 * Experience administering and securing Windows and RHEL servers
 * Experience with VMware virtualization
 * Experience with securing system configurations, system hardening
 * Experience with scripting

Qualifications We Prefer:

 * Currently active a Secret clearance
 * 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.

## Description

* Serve as a Principal Systems Administrator will be 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.
 * Must have an interim clearance to set start date