Windows System Administrator (Onsite - TS / SCI Clearance Required)

Date Posted : 2026-02-16

Country :

United States of America

Location :

US-TX-MCKINNEY-513PW ~ 2501 W University Dr ~ PW BLDG

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 Type :

DoD Clearance : Top Secret

Security Clearance Status :

Active and existing security clearance required on day 1

RTX Corporation is an Aerospace and Defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace Systems, Pratt & Whitney, and Raytheon. Its 185,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Aurora CO

The following position is to join our RTX Enterprise Services team :

Role Overview

We are seeking a skilled System Administrator on Windows systems to join our IT team. The successful candidate will be responsible for the deployment, configuration, maintenance, and support of Windows 11 workstations and related infrastructure. This role requires hands-on expertise with Windows 11, strong troubleshooting skills, and experience with modern endpoint management, security, and automation tools.

This role is onsite in McKinney, TX and requires a TS / SCI with active polygraph in order to be considered

What You Will Do :

• Install, configure, and maintain Windows 11 operating systems and related hardware / software across the organization
• Provide advanced troubleshooting for Windows 11 workstations, including OS, application, and hardware issues
• Manage user accounts, permissions, and group policies via Active Directory
• Deploy and manage devices using Microsoft Intune, SCCM, or similar endpoint management solutions
• Oversee system updates, BIOS / driver updates, and security patches using Windows Update for Business
• Automate routine tasks and deployments using PowerShell and other scripting tools
• Maintain system documentation, configuration records, and standard operating procedures
• Collaborate with IT and security teams to support business continuity, disaster recovery, and incident response
• Provide technical support to end-users, resolve tickets, and ensure high customer satisfaction
• Participate in system upgrades, migrations, and hardware lifecycle management
• Test and validate new hardware for Windows 11 compatibility

Qualifications You Must Have :

1+ Years experience in Windows 11

Security + certification

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.

TS / SCI with active poly

Ability to lift up to 50 pounds (for hardware moves / installs)

What We Offer : Whether you’re just starting out on your career journey or are an experienced professional, we offer a robust total rewards package with compensation; healthcare, wellness, retirement and work / life benefits; career development and recognition programs. Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child / adult backup care.

Work Location : Onsite - McKinney, TX

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

The salary range for this role is 68,900 USD - 131,100 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, education / training, and key skills.Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.Hired applicants may be eligible for annual short-term and / or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and / or the company’s performance.This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.