Senior Linux Systems Administrator – DoD Secret Clearance

RTX (Raytheon)

McKinney (TX)

On-site

USD 90,000 - 130,000

Full time

5 days ago

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Job summary

RTX in McKinney, TX is seeking an onsite IT Systems Administrator to manage Red Hat Enterprise Linux and Windows environments, lead Red Hat installation and configuration, and participate in engineering software installation and support.

The role requires 5+ years of relevant experience, active DoD Secret clearance, US citizenship, and experience with AD, VMware, backup software, and security-compliant operations; duties include 24x7 support and cross‑team collaboration.

Qualifications

Experience with Red Hat Enterprise Linux and Windows administration.
Knowledge of AD/WSUS and server backup/recovery suites.
Active and transferable DoD Secret clearance is required before start date.
U.S. citizenship is required for security clearance eligibility.

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 of Windows Server and Linux fundamentals including DNS/AD to support operations.
Provide documentation and training on advanced IT processes and procedures; support classified programs.