Linux Administrator

Dubai Tax Free2 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