Linux System Administrator
3 days ago
Job Title: Linux System Administrator Experience Required: 5+ Years Location: Nashik Department: IT Infrastructure / Cloud Operations Reports To: Manager – Infrastructure / Cloud OperationsRole Overview The Linux System Administrator will be responsible for installing, configuring, securing, and maintaining Linux-based systems and servers across on-premises and cloud environments. The role ensures optimal system performance, availability, and reliability while driving automation, monitoring, and compliance initiatives. The administrator will collaborate closely with NOC, Cloud, and Security teams to deliver robust infrastructure solutions and meet SLA commitments.Key Responsibilities1. System Administration Install, configure, and maintain Linux servers (RHEL, CentOS, Ubuntu, SUSE). Manage services such as Apache, Nginx, Samba, SSH, NFS, and FTP. Handle OS-level patching, kernel upgrades, and configuration management. Manage user accounts, permissions, sudo policies, and directory structures. Perform system performance tuning and capacity planning.2. Virtualization & CloudManage virtualized environments using VMware, KVM, or OpenStack. Support Linux workloads hosted on AWS, Azure, or private cloud platforms. Participate in migration and optimization of workloads between on-prem and cloud. Configure storage (LVM, iSCSI, NFS, SAN) and ensure redundancy.3. Backup, Security & ComplianceConfigure and monitor backup jobs using tools such as Veeam, Commvault, or rsync-based solutions. Ensure OS hardening and security baseline implementation as per compliance standards (ISO 27001, SOC 2, etc.). Implement and maintain firewall, SELinux, and audit policies. Conduct regular vulnerability scans and patch remediation.4. Automation & MonitoringDevelop automation scripts using Bash, Python, or Ansible to streamline operations. Maintain configuration management using Ansible, Puppet, or Chef. Implement and maintain system monitoring tools (Nagios, Zabbix, Prometheus, or Grafana). Create dashboards and performance reports to track server health.5. Incident, Change & Problem ManagementRespond to and troubleshoot incidents, perform RCA (Root Cause Analysis), and resolve escalations. Execute approved change requests and ensure adherence to ITIL processes. Document system configurations, standard operating procedures, and troubleshooting guides.6. Collaboration & SupportCollaborate with Cloud, Network, Security, and Application teams for cross-functional dependencies. Provide L2/L3 support for complex Linux-related issues. Participate in 24x7 on-call rotations as per operational requirements. Mentor junior administrators and foster continuous improvement initiatives.Key Skills & CompetenciesTechnical Skills: Linux Server Administration (RHEL, CentOS, Ubuntu, SUSE) Shell scripting (Bash/Python) Automation tools (Ansible/Puppet/Chef) Web servers (Apache/Nginx) and DB basics (MySQL/PostgreSQL) Networking fundamentals (IPTables, Firewalld, TCP/IP, DNS, DHCP) Virtualization (VMware, KVM) Monitoring & backup tools (Nagios, Zabbix, Veeam, Commvault) Cloud exposure (AWS/Azure/OpenStack) Security & patch managementSoft Skills: Analytical problem-solving with attention to detail Proactive and ownership-driven mindset Strong collaboration and communication skills Customer-oriented with commitment to SLA adherenceQualifications Bachelor’s degree in Computer Science, IT, or related field. Red Hat Certified System Administrator (RHCSA) / Engineer (RHCE) –Preferred. Certifications in Ansible, AWS, or Azure are an added advantage.
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