Senior Linux Systems Administrator & Lead, 9/80 Schedule

L3Harris Technologies; Tulsa (OK); On-site; USD 95,000 - 125,000; Full time

Job summary

L3Harris Technologies is seeking a Senior Linux Administrator to maintain a mixed Windows and Linux environment in Tulsa, OK. The role requires strong Linux engineering skills, patching, STIG hardening, and automation-based deployments, with the ability to guide IT projects and support on-site system administrators.

The candidate will interact with program leadership, perform budget-related tasks, and ensure security policy compliance while delivering reliable end-user support and system

Qualifications

• Bachelor’s Degree or equivalent experience with 6+ years in Linux administration.
• 8+ years in Red Hat Linux administration, networking (TCP/IP), scripting, and cybersecurity practices (patch management, STIG compliance).
• Current/Active Secret Security Clearance.

Responsibilities

• Administer and maintain Red Hat Linux servers and workstations.
• Ensure compliance with computer security policy including NIST 800-53 and DISA STIGs.
• Respond to support tickets and interface with users and management.
• Develop policies and documentation for computing resources usage.
• Evaluate vendor products with leadership and program teams; make hardware/software recommendations.
• Provide managerial support for on-site system administration team, including performance evaluations and budget management.

Skills

Red Hat Linux

Networking

Shell scripting

Cybersecurity practices

Automation tools

LDAP

VMware

Citrix

Centrify

VDI

Active Directory integration

Education

Bachelor’s Degree

Tools

Satellite

Ansible

Kickstart

NetApp

CommVault

Samba

NFS

Active Directory

Job description

L3Harris Technologies is seeking a Senior Linux Administrator to maintain a mixed Windows and Linux environment in Tulsa, OK. The role requires strong Linux engineering skills, patching, STIG hardening, and automation-based deployments, with the ability to guide IT projects and support on-site system administrators.

The candidate will interact with program leadership, perform budget-related tasks, and ensure security policy compliance while delivering reliable end-user support and system