Systems Administrator

Senior Systems Administrator 

Location: Chicago,IL
Schedule: Hybrid – Tuesday–Thursday onsite
Duration: 6 months with strong potential for extension
Hours: 40 hours/week
Pay: $50–$72/hr + 1.5x OT

Overview
ARTC is seeking a Senior Systems Administrator to support enterprise Linux infrastructure, including server administration, clustering, automation, storage, and infrastructure migrations.

Key Responsibilities

• Administer and support Red Hat Enterprise Linux (RHEL) and Oracle Linux environments

• Manage Linux servers, VMware, storage, backups, and system performance

• Support Red Hat PCS clustering and high-availability environments

• Develop automation using Ansible and scripting languages such as Bash, Python, or Perl

• Support Linux patching, upgrades, migrations, and infrastructure changes

• Coordinate technical activities with application teams and infrastructure partners

• Troubleshoot complex system issues and lead technical discussions

• Participate in an on-call rotation and occasional after-hours maintenance

Required Qualifications

• 6–8+ years of Linux/Unix systems administration experience

• Strong RHEL experience

• Experience with Oracle Linux

• Experience with Linux clustering, preferably Red Hat PCS/Pacemaker/Corosync

• Experience with Ansible and scripting

• Experience with storage technologies such as LVM, ZFS, Veritas, SAN, or NAS

• Bachelor's degree in IT, Computer Science, or related field

• Strong communication and troubleshooting skills

• Ability to work onsite Tuesday–Thursday

Preferred

• Solaris experience

• Oracle Exadata

• VMware

• Veritas Infoscale

• Azure or Oracle Cloud

• Large enterprise or Fortune 500 environment experience