KONNECTINGTREE INC
KONNECTINGTREE INCVerified Source

Linux Administrator, Enterprise Infrastructure

Onsite · Chicago, Illinois
Posted August 12, 2026
payroll

Overview

This role owns the health and stability of enterprise Linux environments across on-prem and cloud, supporting thousands of servers. You will manage daily operations, including patching, performance tuning, and incident response, with 10+ years of deep Linux administration. Work alongside a team of engineers and collaborate with DevOps to implement automation. The role stands out for its mix of hands-on troubleshooting and strategic infrastructure improvements.

What You'll Do7

  • 1Build and maintain Red Hat and CentOS systems with Ansible and Puppet for configuration management.
  • 2Diagnose and resolve system issues in production, ensuring uptime and performance for critical applications.
  • 3Design and implement monitoring with Nagios and Prometheus, alerting on system health and capacity.
  • 4Scale storage and filesystems using LVM and NFS, including backup and recovery procedures.
  • 5Coordinate with security teams to apply CIS benchmarks and harden servers.
  • 6Drive automation of routine tasks using Bash scripting and Python.
  • 7Manage virtualized environments with VMware and KVM, including live migration and resource allocation.

Requirements7

  • 110+ years hands-on Linux administration in enterprise environments.
  • 2Expert proficiency with Red Hat and CentOS system administration.
  • 3Strong Bash scripting skills and experience with Python automation.
  • 4Deep knowledge of TCP/IP, DNS, DHCP, and SSH.
  • 5Experience with configuration management tools like Ansible or Puppet.
  • 6Familiarity with AWS and Azure cloud platforms.
  • 7Certifications such as RHCE or LPIC-3 are a plus.

Salary Insight

Salary not disclosed in listing

Location

Typeonsite
LocationChicago, Illinois

Required Skills

Linux administration
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