? Linux & Microsoft Azure Infrastructure Administrator
? Location: HCLTech Lucknow, Uttar Pradesh
? Shift: 24x7 Rotational Shifts
? Experience: 12 Years

Role Summary
Responsible for the administration, maintenance, and support of enterprise Linux infrastructure hosted on Microsoft Azure. The role encompasses Linux operating system lifecycle management, Azure infrastructure administration, high-availability clustering, incident resolution, performance optimization, and compliance with organizational security and change management standards.

Key Responsibilities
Administer, configure, and maintain enterprise Linux operating systems, including Red Hat Enterprise Linux (RHEL), SUSE Linux Enterprise Server (SLES), and SUSE Linux Enterprise (SUSE).
Provision, configure, and manage Linux workloads deployed on Microsoft Azure Virtual Machines.
Perform operating system installation, patching, upgrades, kernel updates, package management, and system hardening in accordance with approved change management procedures.
Configure, administer,



and troubleshoot Pacemaker-based High Availability (HA) clusters to ensure business continuity and service availability.
Manage Azure infrastructure services, including Virtual Machines, Managed Disks, Virtual Networks (VNet), Network Security Groups (NSG), Storage Accounts, Load Balancers, Availability Sets/Availability Zones, Azure Monitor, and Log Analytics.
Monitor Linux servers and Azure infrastructure for availability, performance, capacity, and security, implementing corrective actions where required.
Diagnose and resolve Linux operating system, Azure compute, storage, networking, and clustering issues within established service level agreements (SLAs).
Perform root cause analysis (RCA) for recurring infrastructure incidents and implement preventive and corrective actions.
Execute system backup, restoration, disaster recovery, and maintenance activities in accordance with organizational policies.
Prepare and maintain technical docum

📌 Senior Linux System Administrator (Lucknow)
🏢 HCLTech
📍 Lucknow