Principal System Administrator- Will sponsor a clearance

U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Active and transferable U.S. government-issued Secret security clearance (or ability to obtain an interim clearance prior to start date) is required.

About the role

Serve as a Principal Systems Administrator supporting Windows and Linux enterprise environments at RTX, the world’s largest aerospace and defense company. This full-time, 100% onsite position is located in Woburn, MA, within a large-scale, mission-critical environment operating 24x7x365.

Responsibilities

• Design, implement, maintain, patch, and troubleshoot Windows Server, Windows 11, RHEL 7/8/9, and virtualized infrastructure.
• Perform Windows and Linux patching, vulnerability remediation, and compliance activities, including STIG/EVAL STIG implementation, SCAP/ACAS support, log collection, and 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 with minimal oversight.
• Support planned and emergent operational needs in a DoD closed-area environment, including occasional after-hours support and up to 10% travel as required.
• Work independently, prioritize competing demands, and execute with minimal direction in a fast-paced operational environment.

Requirements

• Typically, a bachelor’s degree with 5+ years of relevant experience, or an advanced degree with 3+ years of relevant experience.
• Experience administering and securing Windows and RHEL servers.
• Experience with VMware virtualization.
• Experience with securing system configurations and system hardening.
• Experience with PowerShell scripting.

Preferred Qualifications

• 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.

Benefits

• Medical, dental, vision, life insurance, and short-term/long-term disability coverage.
• 401(k) match.
• Flexible spending accounts.
• Flexible work schedules.
• Employee assistance program.
• Employee Scholar Program (tuition assistance).
• Parental leave.
• Paid time off and holidays.
• Annual short-term and/or long-term incentive compensation programs (dependent on role level and collective-bargaining agreements).
• Relocation assistance available.

Pay

The salary range for this role is 86,800 USD – 165,200 USD. The range is a good-faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including role, function, responsibilities, work experience, location, education/training, and key skills.