Linux Administrator

We are looking for an experienced Linux Administrator to manage maintain secure and troubleshoot enterprise Linux server environments. The ideal candidate should have strong hands-on experience with RHEL CentOS Ubuntu system administration patching storage networking monitoring security and automation.

• Install configure administer and maintain Linux servers including RHEL CentOS Ubuntu and SUSE.
• Perform OS upgrades patch management vulnerability remediation and system hardening.
• Manage Linux users groups permissions sudo access SSH processes and services.
• Manage file systems partitions LVM disk utilization NFS and storage mounts.
• Monitor server availability performance capacity CPU memory disk and network utilization.
• Troubleshoot Linux OS application storage networking and authentication issues.
• Configure and manage services including SSH DNS DHCP NFS FTP Apache Nginx and Tomcat.
• Perform root cause analysis (RCA) for production incidents and resolve issues within defined SLAs.
• Manage package installation and updates using YUM DNF and APT.
• Develop and maintain Shell/Bash scripts to automate routine administrative tasks.
• Use Ansible for configuration management patching provisioning and automation.
• Support backup restore disaster recovery and high-availability activities.
• Configure and troubleshoot Linux networking including TCP/IP DNS routing firewalls and connectivity.
• Implement security controls including SELinux firewalld SSH hardening access controls and vulnerability remediation.
• Work with monitoring and logging tools such as Nagios Zabbix Grafana Prometheus or similar platforms.
• Support Linux environments running on VMware cloud platforms and virtual infrastructure.
• Participate in incident problem change and release management processes.
• Maintain SOPs runbooks configuration documentation and technical procedures.

• 4 years of hands-on Linux System Administration experience.
• Strong experience with RHEL / Red Hat Linux administration.
• Good knowledge of CentOS Ubuntu and/or SUSE Linux.
• Strong knowledge of Linux file systems LVM partitions permissions processes and services.
• Experience with Shell/Bash scripting.
• Hands-on experience with Ansible.
• Strong understanding of DNS DHCP TCP/IP SSH NFS and networking fundamentals.
• Experience with YUM/DNF/APT package management.
• Knowledge of SELinux firewalld systemd cron and log management.
• Experience with Linux patching upgrades hardening and vulnerability remediation.
• Strong troubleshooting and root-cause-analysis skills.
• Experience supporting production environments and enterprise infrastructure.

• RHCSA / RHCE certification.
• Experience with VMware vSphere/ESXi.
• Experience with AWS Azure or GCP Linux workloads.
• Knowledge of Docker and Kubernetes.
• Experience with Apache Nginx Tomcat or JBoss.
• Knowledge of Pacemaker/Corosync and Linux clustering.
• Experience with SAN/NAS RAID backup and disaster recovery.
• Exposure to Terraform Jenkins Git or CI/CD.
• ITIL/production support experience.