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# Sr. System Administrator

- **Company:** RTX
- **Location:** McKinney, TX, United States
- **Experience:** Expert
- **Salary:** $68,900.0 - $131,100.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Antivirus Softwares, Backup Devices, Cyber Security, Dynamic Host Configuration Protocol, Linux, Disaster Recovery, RAID, Domain Name System (DNS), File Server, Identity and Access Management, Windows Servers, Performance Tuning, Security Content Automation Protocol, Service Pack, Scripting, Data Storage Management, Information Technology, Performance Monitor, Multiplatform
- **Published:** October 28, 2026
- **Apply:** https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-TX-MCKINNEY-513WC--2501-W-University-Dr--WING-C-BLDG/Sr-System-Administrator_01884398

## About the Role

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, * Typically requires a University degree or equivalent experience and a minimum of 2 years of prior relevant experience, or an Advanced Degree in a related field.

 * 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 deployment, administration, performance monitoring/tuning, security hardening, and troubleshooting.
 * Experience with Windows deployment, administration, performance monitoring/tuning, security hardening, and/or troubleshooting., * An active DoD Secret or Top Secret clearance.
 * Experience with infrastructure backup, restore, disaster recovery and business continuity products.
 * Scripting Experience.
 * Experience using tools like SCAP and following STIGs.
 * Experience with Linux architecture, deployment, administration, performance monitoring/tuning, security hardening, and troubleshooting.

## Description

Raytheon currently has an exciting IT position available that supports the Raytheon mission of making the world a safer place. We are currently seeking a Windows Systems Administrator that will be working onsite in a highly collaborative, multi-platform and multi-disciplined environment. The Systems Administrator is required to have an active secret security clearance as they will be responsible for deploying and maintaining classified IT infrastructures., * Windows server management; storage management; file server management; access management; data backup; software and license configuration; and workstation support. Each day in the life of a Systems Administrator can bring something new - building a new IT infrastructure for a group of engineers, restoring files due to an outage, updating virus definitions and security patches, teaming with our brilliant engineers on how to improve their processes, and more.

 * What You Will Learn
 * You will provide System Administration in a heterogeneous Microsoft Windows (Primary OS) environment.
 * Understanding and knowledge of Windows Server internals to include DNS, DHCP, AD, and Windows integration methods.
 * Working as a team member in a fast-paced technological environment. Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS).
 * Understanding of data RAID, data backup uses and technologies. Install and configure software applications requested by end users.
 * Work with Cybersecurity professionals to maintain security requirements.
 * Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements within 6 months of start date.
 * This position has the potential to work off hours and weekends.