Red Hat Linux Systems Administrator & Security Engineer

Red Hat Linux Systems Administrator & Security Engineer

Managing, securing, and hardening enterprise Red Hat Linux environments to ensure reliable and secure operations

Position Overview
We are seeking a skilled Red Hat Linux Systems Administrator with expertise in both system administration and security hardening. The role involves managing Red Hat Enterprise Linux (RHEL) servers, ensuring system availability, performance, and implementing security best practices to protect critical infrastructure.

You will be responsible for configuring, monitoring, and hardening Red Hat systems in accordance with security policies and compliance requirements, collaborating with IT security teams to safeguard enterprise environments.

Key Responsibilities

System Administration

• Install, configure, and maintain Red Hat Enterprise Linux (RHEL) servers and environments
• Manage user accounts, permissions, groups, and system services
• Perform routine system monitoring, performance tuning, and capacity planning
• Automate system administration tasks using scripting languages such as Bash, Python, or Ansible

Security Hardening & Compliance

• Implement security hardening based on industry standards and benchmarks (e.g., CIS, DISA STIG)
• Configure firewall rules (iptables, firewalld) and SELinux policies to enforce security controls
• Manage patching, vulnerability assessments, and remediation for RHEL systems
• Conduct system audits, log reviews, and compliance checks to identify and mitigate security risks

Incident Response & Troubleshooting

• Investigate and resolve system issues impacting availability or security
• Participate in incident response efforts involving Linux systems
• Collaborate with security teams to enforce policies and improve system resilience

Documentation & Best Practices

• Develop and maintain system configuration, hardening guides, and runbooks
• Keep abreast of emerging security threats and Linux security enhancements
• Provide training and support for other IT teams on Linux security and administration

Required Qualifications

• 6+ years experience administering Red Hat Enterprise Linux (RHEL) environments
• Strong knowledge of Linux system internals, networking, and security principles
• Proven experience with security hardening frameworks and tools (CIS benchmarks, SELinux, firewall configuration)
• Proficiency in scripting and automation (Bash, Python, Ansible)
• Experience with patch management and vulnerability remediation

Preferred Qualifications

• Red Hat certifications such as RHCSA, RHCE, or RHCA
• Familiarity with containerization technologies (Docker, Podman, Kubernetes) on RHEL
• Experience with Security Information and Event Management (SIEM) integration
• Knowledge of compliance standards such as PCI-DSS, HIPAA, GDPR
• Experience with configuration management tools (Ansible, Puppet, Chef)