Job Description
Infrastructure Technology Lead Analyst (Red Hat Linux, GRID Infrastructure L3 Support Engineer)
The Infrastructure Technology Lead Analyst is an intermediate-level technical role responsible for providing Level 3 support, engineering, remediation, and operational excellence across the Unified Red Hat Enterprise Linux (RHEL) estate consisting of more than 100,000+ servers. The role requires deep expertise in Linux administration, troubleshooting complex infrastructure issues, security hardening, automation, and configuration management. The overall objective is to leverage advanced infrastructure technology knowledge, operational policies, and engineering best practices to maintain platform stability, security, compliance, and service availability.
Responsibilities
• Provide Level 3 technical support for complex Red Hat Enterprise Linux, GRID infrastructure server incidents, escalations, and critical production outages across a large-scale enterprise workplace.
• Lead troubleshooting and resolution of high-impact operating system, kernel, performance, storage, networking,



and server infrastructure issues to restore services within agreed SLAs.
• Perform detailed Root Cause Analysis (RCA) following service restoration and implement corrective and preventive actions to eliminate recurring issues.
• Design and implement server security hardening standards in accordance with enterprise security policies, regulatory requirements, and industry best practices.
• Manage vulnerability remediation activities, security patching, operating system lifecycle management, and compliance controls across the Red Hat server estate.
• Administer and troubleshoot infrastructure agents including monitoring, security, backup, automation, compliance, and endpoint management agents deployed across Linux servers.
• Develop, maintain, and optimize Ansible playbooks for server provisioning, configuration management, patching, security remediation, and operational automation.
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📌 Infrastructure Senior Tech Analyst (Chennai)
🏢 Citi
📍 Chennai