Windows Systems Administrator (ONSITE)

RTX; McKinney (TX); On-site; USD 87,000 - 165,000; Full time

Benefits offered by this job

Relocation assistance

Comprehensive benefits (medical,Dental

Vision and other benefits

Job summary

RTX is seeking a Windows Subject Matter Expert (SME) to support a large-scale enterprise network in McKinney, TX. The role focuses on Windows Server, Active Directory, Exchange, and related services, with an emphasis on security, reliability, and 24x7 operations.

Applicants must hold an active Secret clearance and U.S. citizenship. Collaboration across Digital Technology and program teams is essential, with occasional extended hours and up to 10% travel.

Qualifications

• Active and transferable U.S. government issued Secret security clearance is required prior to start date.
• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
• Typically requires a University Degree or equivalent experience and minimum 5 years prior relevant experience, or An Advance Degree in a related field and minimum 3 years experience.
• Experience with Windows Server administration (Active Directory, Exchange, DNS, DHCP).

Responsibilities

• As a Windows Subject Matter Expert (SME), you will possess in-depth knowledge of Microsoft Windows environments, with extensive experience in designing, implementing, troubleshooting, and maintaining Windows Server, Desktop, and Virtual OSs on a large-scale enterprise network whose systems are operational 24x7x365.
• You will have a deep understanding and proficiency of Windows 10/11, Windows Server 2019/2022, Domain Controllers, Active Directory Domain Services, Group Policy and integrated services leveraging best practices of Windows platforms and products.
• Play a crucial role in building, hardening, and sustaining the reliability and security of the Windows-based server and desktop infrastructures and virtual environments.
• Collaborate and partner across Digital Technology and program(s), to deliver cost effective software and hardware solutions that meet current and future needs while following industry best practices.
• Integrate and partner with customer(s), engineers, storage architects, system administrators, network engineering, tools and high-performance computing teams to solve complex infrastructure problems.
• Ensure compliance with security requirements (DFARS, RMF, NIST Cybersecurity Frameworks).
• Support occasional efforts (planned and unplanned) that may require work beyond and outside standard work hours.
• Potential for up to 10% travel

Skills

Windows administration

Active Directory

Exchange

DNS

DHCP

Security clearance

Education

Bachelor's degree or equivalent experience

DoD 8570/DoD Directive certifications

Tools

Windows Server

Group Policy

VMware ESXi

WSUS

SCAP/STIG

Job description

Date Posted:

2026-11-02

Country:

United States of America

Location:

US-TX-MCKINNEY-513WC ~ 2501 W University Dr ~ WING C 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:

Secret - Current

Security Clearance Status:

Active and existing security clearance required on day 1

At RTX, the world's 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.

What You Will Do:

• As a Windows Subject Matter Expert (SME), you will possess in-depth knowledge of Microsoft Windows environments, with extensive experience in designing, implementing, troubleshooting, and maintaining Windows Server, Desktop, and Virtual OSs on a large-scale enterprise network whose systems are operational 24x7x365.
• You will have a deep understanding and proficiency of Windows 10/11, Windows Server 2019/2022, Domain Controllers, Active Directory Domain Services, Group Policy and integrated services leveraging best practices of Windows platforms and products.
• Play a crucial role in building, hardening, and sustaining the reliability and security of the Windows-based server and desktop infrastructures and virtual environments.
• Collaborate and partner across Digital Technology and program(s), to deliver cost effective software and hardware solutions that meet current and future needs while following industry best practices.
• Integrate and partner with customer(s), engineers, storage architects, system administrators, network engineering, tools and high-performance computing teams to solve complex infrastructure problems.
• Ensure compliance with security requirements (DFARS, RMF, NIST Cybersecurity Frameworks).
• Support occasional efforts (planned and unplanned) that may require work beyond and outside standard work hours.
• Potential for up to 10% travel

What You Will Learn:

• Active Directory
• Exchange / Skype
• WSUS / PDQ / SCCM
• DHCP / DNS
• STIG / SCAP vulnerability scans and remediation
• SQL Databases
• Patching
• ESXi / VMWare
• NetApp

Qualifications You Must Have

• Active and transferable U.S. government issued Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
• Typically requires a University Degree or equivalent experience and minimum 5 years prior relevant experience, or An Advance Degree in a related field and minimum 3 years experience
• Experience with Windows Server administration ( Active Directory, exchange, DNS, DHCP )

Qualifications We Prefer

• Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification and an Operating System Certification).
• Experience working with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF and handling classified information.
• Experience with some but not limited to, the following technologies: Active Directory, WSUS, VMware, AWS, MySQL, and prior Windows administration, backup and recovery enterprise suites
• Experience leading and mentoring junior administrators.
• Experience using VMWare vCenter, vSphere, and ESX and/or other virtual computing methods.

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. Relocationassistanceis available.
• Relocation assistance available, provided final candidate meets eligibility requirements

The salary range for this role is 86,800 USD - 165,200 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.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

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