Senior System Administrator: Linux/Windows, Secret Clearance

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

Benefits offered by this job

Medical benefits

401(k) match

Paid time off

Job summary

RTX is seeking a skilled IT Systems Administrator for an onsite, 100% role in McKinney, TX. The candidate will manage Linux and Windows infrastructures, ensure security controls, and support DoD classified programs. U.S.

citizenship and an active DoD security clearance are required. The position emphasizes installation, configuration, testing, and documentation, with opportunities to mentor junior admins and collaborate across teams.

Qualifications

• 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.

Responsibilities

• Provide IT systems administration in a heterogeneous RedHat Enterprise/Microsoft Windows environment.
• Lead and coordinate the RedHat Installation and configuration.
• Participate in all phases of Engineering software installation and support, with emphasis on testing, documentation, and acceptance phases.
• Collaborate with teams and mentor junior Linux admins.
• Apply understanding and knowledge of Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods.
• Work 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).
• Provide documentation and training on advanced IT processes and procedures and other tasks as assigned.
• Responsible for provisioning, installation/configuration, operation, and maintenance of systems hardware and software related to a Linux/Windows infrastructure for classified programs.

Skills

Red Hat Linux

Active Directory

WSUS

VMware

BackupExec

NetBackup

Windows/Linux admin

PowerShell

Bash

Security clearance

Education

University degree or equivalent experience

Tools

VMware vCenter

vSphere

SCCM

Exchange

Splunk

ESX

Job description

RTX is seeking a skilled IT Systems Administrator for an onsite, 100% role in McKinney, TX. The candidate will manage Linux and Windows infrastructures, ensure security controls, and support DoD classified programs. U.S.

citizenship and an active DoD security clearance are required. The position emphasizes installation, configuration, testing, and documentation, with opportunities to mentor junior admins and collaborate across teams.