Sr Windows System Administrator

Date Posted:

2026-02-02

Country:

United States of America

Location:

US-CA-EL SEGUNDO-R01 ~ 2000 E Imperial Hwy ~ BLDG R01

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: Secret

Security Clearance Status:

Active and existing security clearance required on day 1

At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring 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. Our team solves tough, meaningful problems that create a safer, more secure world. 

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

Qualifications You Must Have:

• Typically requires a University degree or equivalent experience and a minimum of 5 years of prior relevant experience or an Advanced Degree in a related field and minimum 3 years experience.

• 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.

• 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 with windows scripting using Powershell or Ansible.

• Experience in the following areas: patch management, High Performance Computing, OS Upgrades, computer security, system monitoring and logging and Storage Area Network (SAN) and Network Attached Storage (NAS) systems.

• Experience leading and mentoring junior administrators.

• High Performance Computing (HPC) experience in a Linux environment.

• 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: Trust, Respect, Accountability, Collaboration, and Innovation.

Learn More & Apply Now!

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 95,500 USD - 181,700 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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