Linux Administrator (m/f/d)

Role Purpose

CIS Benchmarks and DISA STIGs

• OS Patch Management & Compliance

• Execute OS-level security patching across Linux environments (RHEL, CentOS, etc.)
• Align patching processes with:
• + CIS Benchmarks
• + DISA STIG standards
• Ensure timely identification and remediation of vulnerabilities
• Monitor patch compliance and generate reports for audits and governance

• System Hardening & Security

• Perform kernel-level hardening to enhance system security
• Configure and enforce SELinux policies across environments
• Implement secure configurations in line with enterprise security standards
• Identify and remediate system misconfigurations and vulnerabilities

• Patch Automation & Orchestration

• Design and manage automated patching workflows using:
• + Ansible
• + Red Hat Satellite (or equivalent tools)
• Develop playbooks and automation scripts for:
• + Patch deployment
• + Configuration management
• + Routine maintenance tasks
• Ensure scalability and repeatability of patching processes

• System Availability & Maintenance

• Minimize downtime during patching and updates through:
• + Careful planning and scheduling
• + Use of rolling updates and high-availability strategies
• Perform system monitoring and proactive maintenance
• Support troubleshooting for patch-related or system performance issues

• Infrastructure Operations & Support

• Maintain and administer Linux-based servers in enterprise environments
• Support production environments with a focus on:
• + Stability
• + Performance
• + Security
• Work closely with:
• + Infrastructure teams
• + Security teams
• + Application owners

• Compliance, Documentation & Audit

• Ensure systems comply with:
• + Internal IT/security policies
• + Regulatory requirements (banking/enterprise)
• Maintain documentation of:
• + Patch status
• + System configurations
• + Automation scripts and processes
• Support audits and compliance assessments

Education

• Bachelor’s degree in:
• + Information Technology
• + Computer Science
• + Systems Engineering or related field

Experience

• 5–8 years of experience in:
• + Linux system administration
• + Enterprise infrastructure environments
• Strong hands-on experience with:
• + OS patching and system hardening
• + Large-scale production environments
• Experience in regulated industries (e.g., banking) is preferred

Technical Skills

• Strong expertise in:
• + Linux OS (RHEL, CentOS, Oracle Linux, etc.)
• + System hardening and security best practices
• Experience with:
• + SELinux configuration and troubleshooting
• + Kernel tuning and hardening techniques
• + Configuration management tools (Ansible, Satellite)
• Familiarity with:
• + CIS Benchmarks and DISA STIG frameworks
• + Monitoring and logging tools
• Proficiency in:
• + Shell scripting (Bash) and automation

Soft Skills

• Strong troubleshooting and analytical skills
• Attention to detail with a security-focused mindset
• Ability to manage critical systems under pressure
• Effective communication and collaboration skills

• Compliance & Governance

• Process Automation

Ideal Candidate Profile

• Experienced Linux administrator with strong security and patching expertise
• Hands-on with automation tools like Ansible and Satellite
• Familiar with enterprise security standards (CIS/STIG)
• Capable of managing large-scale, mission-critical environments with minimal downtime
• Balance of technical depth, operational discipline, and security awareness
• Linux Administrator in Abu Dhabi, United Arab Emirates