Linux Administrator L3

TCS Hiring!!!

Role & responsibilities

• Administer, configure, and maintain enterprise Linux servers across development, test, and production environments.

  • Manage system installations, upgrades, patching, and lifecycle activities for Linux Server and Guest OS Images.
  • Ensure system reliability, stability, and compliance with operational standards.
  • Diagnose and resolve complex technical issues across OS, hardware, storage, and network layers.
  • Perform root cause analysis for recurring incidents and implement permanent fixes.
  • Provide expert support during critical outages and major incidents.
  • Develop and maintain automation scripts to streamline administrative tasks and reduce manual effort.
  • Automate system provisioning, configuration management, and operational workflows.
  • Support continuous improvement through automation initiatives.
  • Manage user access, permissions, and authentication mechanisms.
  • Apply security patches, monitor vulnerabilities, and support audit requirements.
  • Monitor system performance and capacity to ensure optimal operation.
  • Tune kernel parameters, services, and resources to improve efficiency and scalability.
  • Identify bottlenecks and implement performance improvements.
  • Support Linux systems in complex network environments.
  • Administer systems hosted on virtualization platforms (e.g., VMware, KVM).
  • Manage Linux workloads across cloud platforms and hybrid environments.
  • Support and maintain critical infrastructure to ensure maximum uptime.
  • Implement and manage high-availability and disaster recovery solutions.
  • Participate in capacity planning and resilience initiatives.
  • Work closely with application teams, infrastructure teams, and stakeholders to resolve issues efficiently.
  • Document system configurations, procedures, and troubleshooting steps.
  • Provide technical guidance and knowledge sharing within the team.

• Bash

  • Python (Linux)
  • PowerShell
  • Shell scripting

• RHCSA

  • RHCSE
  • Linux+

• ServiceNow

  • Putty
  • Azure Devops
  • Github