RHEL Linux Admin

Chicago 1 months agoContractor External
499 - 570 / hr
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) • Linux certifications (e.g., RHCSA, RHCE, LPIC) • 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) • Experience designing high-availability solutions across AWS regions • Proficiency in managing Red Hat Satellite content views and lifecycle environments