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The Judge Group

Sr. Linux System Administrator

The Judge Group, Chicago, Illinois, United States, 60290

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This range is provided by The Judge Group. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range $70.00/hr - $80.00/hr

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We are looking for a seasoned Linux Systems Administrator with a strong background in automation, cloud infrastructure, and system security. In this contract role, you will play a critical part in deploying, maintaining, and optimizing our Linux-based environments across on-premises and AWS cloud platforms. The ideal candidate is highly skilled in Ansible, AWS services, vulnerability management, and RHEL system upgrades, with a proactive approach to troubleshooting and system reliability.

Key Responsibilities

Deploy, configure, and manage Linux servers across physical, virtual, and AWS environments

Automate provisioning and configuration using Ansible and related tools

Plan and execute system patches, upgrades, and in-place RHEL migrations

Design and maintain AWS infrastructure with a focus on scalability, security, and cost-efficiency

Administer AWS services including EC2, S3, VPC, IAM, RDS, and others

Perform vulnerability assessments and implement remediation strategies

Review and act on vulnerability scan reports (e.g., from Qualys, CrowdStrike)

Manage content views and lifecycle environments in Red Hat Satellite

Utilize ServiceNow and JIRA for incident, change, and workflow management

Monitor system performance, availability, and capacity; implement proactive measures

Troubleshoot and resolve complex Linux system and application issues

Enforce security best practices and ensure compliance with internal policies

Maintain detailed documentation of systems, configurations, and procedures

Participate in an on-call rotation for critical support

Collaborate with cross-functional teams on infrastructure initiatives and improvements

Required Qualifications

5+ years of hands‑on experience in Linux system administration (RHEL, CentOS, Ubuntu)

Proficiency in server deployment, configuration management, and patching

Strong troubleshooting skills for Linux systems and applications

Experience with AWS cloud services and infrastructure management

Expertise in Ansible or similar automation/configuration tools

Familiarity with vulnerability management tools and remediation practices

Experience with ServiceNow for ITSM processes

Understanding of virtualization platforms (e.g., VMware, KVM)

Solid grasp of networking fundamentals and security principles

Scripting skills in Bash, Python, or similar languages

Excellent communication and documentation abilities

Preferred Qualifications

AWS certifications (e.g., Solutions Architect, SysOps Administrator)

Experience with security frameworks (e.g., NIST, CIS)

Familiarity with Docker, Kubernetes, and container orchestration

Exposure to CI/CD pipelines and DevOps methodologies

Experience with Infrastructure as Code (e.g., Terraform, CloudFormation)

Knowledge of monitoring tools (e.g., LogicMonitor, Splunk, Nagios, CloudWatch)

Proficiency in managing Red Hat Satellite content views and lifecycle environments

Seniority level Mid‑Senior level

Employment type Contract

Job function Information Technology

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