Linux Engineer with Server Infrastructure – RHEL 7/8/9/10-Full time-Remote

e are seeking an experienced Linux Vulnerability Remediation Engineer with strong expertise in Red Hat Enterprise Linux (RHEL 7/8/9/10), vulnerability management, patching, automation, and infrastructure security. The ideal candidate will be responsible for identifying, prioritizing, remediating, and validating security vulnerabilities across enterprise Linux environments while leveraging automation tools such as Ansible, Chef, Bash, and Ruby.

The candidate should possess hands-on experience with Qualys, Linux hardening, patch management, and enterprise infrastructure operations.

Key Responsibilities

Linux Administration & Infrastructure

• Administer, maintain, and support enterprise Linux environments running RHEL 7/8/9/10.
• Perform operating system installation, configuration, upgrades, and lifecycle management.
• Monitor Linux server health, availability, and performance.
• Troubleshoot Linux operating system, package, and infrastructure issues.
• Support enterprise production environments while maintaining high availability.

Vulnerability Management & Remediation

• Analyze vulnerability scan reports generated by Qualys or equivalent vulnerability management tools.
• Prioritize remediation activities based on severity, exploitability, business impact, and compliance requirements.
• Perform end-to-end remediation of Critical, High, and Medium vulnerabilities.
• Apply security patches, kernel updates, and software package updates using YUM/DNF.
• Implement temporary mitigation strategies where immediate remediation is not possible.
• Validate remediation through vulnerability rescans and closure verification.
• Maintain accurate remediation evidence for compliance and audit purposes.

Patch Management

• Plan, schedule, and execute enterprise Linux patching activities.
• Install Red Hat Security Advisories (RHSA) and software updates.
• Coordinate server reboot activities and maintenance windows.
• Validate application functionality after patch deployment.
• Perform rollback activities when required.
• Maintain patch compliance across enterprise server environments.

Linux Security & Hardening

• Implement Linux security best practices and hardening standards.
• Configure secure SSH access and authentication controls.
• Manage file permissions, ownership, SELinux, firewall, and system services.
• Apply CIS Benchmarks and STIG security recommendations.
• Strengthen server security baselines to minimize recurring vulnerabilities.
• Support compliance initiatives and internal security audits.

Automation & Configuration Management

• Develop and maintain infrastructure automation using:
  • Ansible
  • Chef
  • Bash Shell Scripting
  • Ruby
• Create reusable playbooks, cookbooks, and remediation scripts.
• Automate recurring remediation and server maintenance activities.
• Maintain infrastructure-as-code repositories using Git.
• Improve remediation efficiency through automation and standardized processes.

Incident & Change Management