Linux Systems Engineer: Patching & Security (Hybrid)

cai; Illinois; Hybrid; USD 90,000 - 120,000; Full time

Job summary

CAI, a global services firm, invites applications for a Linux Systems Administrator to support enterprise Linux infrastructure, automated patching, and cybersecurity initiatives. The role is full-time, hybrid in Evanston, IL, with a 35-hour workweek and potential contract-to-hire.

No sponsorship will be provided now or in the future. The candidate should have 4–6 years in Linux administration, experience with Red Hat Satellite, Uyuni, SaltStack, and Spacewalk, plus scripting in Bash/Python and

Qualifications

• Bachelor’s degree in Computer Science or related technical discipline required.
• 4–6 years Linux Systems Administration experience required.
• 2–4 years desktop, network, hardware, and software support experience required.
• Experience with enterprise Linux environments: RHEL, CentOS, SUSE.
• Experience managing Red Hat Satellite Server for patching and updates.
• Experience with automated Linux patching and update solutions.

Responsibilities

• Support client user applications and programs.
• Manage setup, configuration, upgrade, and ongoing administration of automated Linux patching platforms.
• Maintain patching schedules and keep Linux servers and VMs current with security updates.
• Monitor availability and proactively address performance or reliability issues.
• Plan and implement network security measures to protect systems and data.
• Perform server upgrades, deployments, and software installations as required.
• Collaborate with IT teams to coordinate patching and minimize disruption.
• Design, configure, test, and maintain hardware, networking software, and OSs.
• Participate in on‑call rotation and provide 24x7 support for critical incidents.

Skills

Linux administration

Cybersecurity basics

Documentation

Communication

Team collaboration

Education

Bachelor’s degree in Computer Science

Tools

Uyuni

SaltStack

Spacewalk

Red Hat Satellite

Python scripting

Job description

CAI, a global services firm, invites applications for a Linux Systems Administrator to support enterprise Linux infrastructure, automated patching, and cybersecurity initiatives. The role is full-time, hybrid in Evanston, IL, with a 35-hour workweek and potential contract-to-hire.

No sponsorship will be provided now or in the future. The candidate should have 4–6 years in Linux administration, experience with Red Hat Satellite, Uyuni, SaltStack, and Spacewalk, plus scripting in Bash/Python and