Linux Administrator

Dubai Tax Free11 days agoFull-time External
Negotiable
Date Posted: 13 January, 2026 Industry: IT Services and IT Consulting Location: VAPORVM IT SERVICES DMCC Job Description: Linux Administrator Job Summary The Linux Administrator is responsible for supporting, maintaining Linux-based systems. The role handles day-to-day operations, complex troubleshooting, automation, and system improvements while ensuring security, performance, and availability. Key Responsibilities System Administration & Operations Install, configure, and maintain Linux servers (RHEL, CentOS, Ubuntu, Suse, Oracle VM). Perform user and group management, permissions, and Sudo access. Monitor system health, logs, disk usage, and performance. Apply OS patching, updates, and kernel upgrades. Manage system services (systemd, cron, rsyslog). Handle incidents, service requests, and problem tickets. Troubleshooting skills Perform advanced troubleshooting and root cause analysis. Resolve complex OS, performance, and application-related issues. Tune system performance (CPU, memory, I/O). Lead incident resolution and support major outages. Security & Compliance Implement OS hardening and security best practices. Manage SELinux, firewalld, iptables, and SSH security. Support vulnerability remediation and security audits. Ensure compliance with enterprise security standards. Storage, Backup & DR Manage file systems (LVM, ext4, xfs). Configure and support NFS, Samba, and iSCSI. Networking Configure network interfaces, bonding, VLANs, and routing. Troubleshoot DNS, NTP, firewall, and connectivity issues. Support load balancers and reverse proxies (Nginx, HAProxy). Automation & Tools Develop and maintain Bash scripts for automation. Implement and maintain Ansible playbooks. Improve operational efficiency through automation. Use monitoring tools (Prometheus, Grafana, SolarWinds ). Virtualization & Cloud Support Linux systems on VMware, Hyper-V or any virtualisation platform. Documentation & Collaboration Maintain system documentation, SOPs, and build guides. Required Skills & Qualifications Technical Skills 4–5 years of hands-on Linux administration experience. Strong experience with RHEL-based Linux systems. Good scripting and automation skills. Solid understanding of networking and security concepts. Experience in enterprise or data center environments. Preferred Certifications RHCSA / RHCE LFCS / LFCE ITIL Foundation (optional) Please provide 5-6 CVs ASAP