Linux System Administrator

The Judge Group; Chicago (IL); On-site; USD 90,000 - 130,000; Full time

Job summary

The Judge Group is seeking an experienced Linux Systems Administrator to manage and optimize Linux infrastructure across on‑premises and AWS environments. The role emphasizes automation, security, system upgrades, and proactive troubleshooting.

Responsibilities include deploying Linux servers, patching and upgrades, building AWS infrastruc­ture, vulnerability remediation, and incident/change management using ServiceNow and Jira.

Qualifications

• 5+ years Linux admin experience (RHEL, CentOS, Ubuntu).
• Experience with AWS and Ansible.
• Strong troubleshooting and scripting skills (Bash/Python).
• Knowledge of vulnerability management and networking.
• Experience with ServiceNow and virtualization tools.

Responsibilities

• Deploy and maintain Linux servers (physical, virtual, AWS).
• Manage patching, upgrades (RHEL), and system performance.
• Design and support AWS infrastructure (EC2, S3, VPC, IAM, RDS).
• Identify and remediate vulnerabilities.
• Use ServiceNow/JIRA for incident and change management.
• Monitor systems and resolve complex issues.
• Maintain documentation and support on-call rotation.

Skills

Linux administration

AWS

Scripting (Bash/Python)

Vulnerability management

Networking

ServiceNow/Jira

Tools

Ansible

Docker

Kubernetes

Terraform

CI/CD

Job description

We're seeking an experienced Linux Systems Administrator to manage and optimize Linux infrastructure across on-prem and AWS environments. This role focuses on automation, security, system upgrades, and troubleshooting.

Responsibilities

• Deploy and maintain Linux servers (physical, virtual, AWS)
• Manage patching, upgrades (RHEL), and system performance
• Design and support AWS infrastructure (EC2, S3, VPC, IAM, RDS)
• Identify and remediate vulnerabilities
• Use ServiceNow/JIRA for incident and change management
• Monitor systems and resolve complex issues
• Maintain documentation and support on-call rotation
• 5+ years Linux admin experience (RHEL, CentOS, Ubuntu)
• Experience with AWS and Ansible
• Strong troubleshooting and scripting skills (Bash/Python)
• Knowledge of vulnerability management and networking
• Experience with ServiceNow and virtualization tools

Preferred qualifications

• AWS or Linux certifications
• Experience with Docker/Kubernetes, Terraform, CI/CD
• Familiarity with security frameworks and monitoring tools