L3 Linux & Red Hat Administrator

AXIS DIRECT; Navi Mumbai; On-site; INR 800,000 - 1,200,000; Full time

Job summary

AXIS DIRECT is seeking an experienced L3 Linux Administrator to manage enterprise RHEL environments in a 24x7 production setup. You will be hands-on with Red Hat HA clustering, Satellite, OS patches, and security hardening, while enabling automation with Ansible.

The role involves incident resolution, DR support, and collaboration with cross-functional teams to maintain high availability and performance.

Qualifications

• Bachelor's degree in CS/IT/Engineering or equivalent.
• Red Hat and Ansible certifications advantageous.
• Experience in 24x7 mission-critical Linux environments.

Responsibilities

• Administer, configure, troubleshoot, and maintain RHEL/Linux servers in production.
• Manage Red Hat HA Clustering and Pacemaker for failover/failback and quorum.
• Handle Red Hat Satellite for repositories, patching and lifecycle management.
• Plan and execute OS patching, upgrades, security updates, and remediation.
• Perform OS hardening, VAPT remediation, performance monitoring, root-cause analysis.
• Automate tasks using Ansible and playbooks.
• Provide L3 support for production incidents and DR activities.

Skills

RHEL/Linux Administration

Red Hat HA Clustering & Pacemaker

Red Hat Satellite Administration

OS Patch management & lifecycle

Ansible automation

Linux performance monitoring

Linux troubleshooting & security harde

Scripting

Education

Bachelor's degree in Computer Science/IT/Engineering

Tools

VMware

SAN/Storage

Veeam

Veritas NetBackup

SNMP monitoring tools

Job description

Role Overview

We are looking for an experienced L3 Linux Administrator with strong hands‑on expertise in RHEL administration, Red Hat Clustering, Pacemaker Cluster, Red Hat Satellite, and OS patching. The role involves managing mission‑critical Linux infrastructure, ensuring high availability, security, performance, and stability across 24x7 production environments.

Key Roles & Responsibilities

• Administer, configure, troubleshoot, and maintain RHEL/Linux servers in enterprise production environments.
• Hands‑on experience in Red Hat HA Clustering and Pacemaker Cluster, including cluster configuration, resource management, failover/failback, fencing, and quorum.
• Manage Red Hat Satellite for repository management, patching, package updates, and system lifecycle management.
• Plan and execute OS patching, upgrades, security updates, and vulnerability remediation.
• Perform Linux OS hardening, VAPT remediation, performance monitoring, and root‑cause analysis.
• Automate routine administrative tasks using Ansible and playbooks.
• Troubleshoot production incidents and provide L3 support for critical infrastructure issues.
• Support DR activities, backup/recovery, and infrastructure monitoring.
• Coordinate with database, network, storage, security, and application teams.
• Maintain technical documentation and follow ITIL‑based incident, problem, and change management processes.

Mandatory Technical Skills

• Strong hands‑on experience in RHEL/Linux Administration.
• Red Hat HA Clustering and Pacemaker Cluster.
• Red Hat Satellite Administration.
• OS Patching, Upgrades, and Lifecycle Management.
• Linux troubleshooting, security hardening, and VAPT remediation.
• Ansible automation and scripting.
• Linux performance monitoring, networking, and production incident management.

Good to Have

• VMware, SAN/Storage, Veeam, Veritas NetBackup, and SNMP monitoring tools.
• OS‑level support for Oracle, PostgreSQL, MySQL, and MongoDB.
• Experience in 24x7 mission‑critical production environments.

Education

Bachelors degree in Computer Science, IT, Engineering, or an equivalent qualification. Relevant Red Hat and Ansible certifications will be an added advantage.