Celestica

Linux Admin

Linux Admin at Celestica, Chennai. Manage RHEL/CentOS/Rocky servers, patching, security hardening, Ansible automation, user management, incident resolution & on-call support. 5-6 yrs exp required.

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Job Level - JobBoardly X Webflow Template
Mid-Level
ServiceNow Role Type:
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System Administrator
ServiceNow Modules:
Department - JobBoardly X Webflow Template
IT Service Management
ServiceNow Certifications (nice to have):
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Certified System Administrator

Job description

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Posted on:
 
November 2, 2025

This role is for a dedicated Linux Systems Administrator responsible for the installation, configuration, and maintenance of Linux servers (RHEL, CentOS, Rocky) in physical and virtual environments.

Requirements

  • Install, configure, and manage Linux servers (RHEL, CentOS, Rocky) in both physical and virtualized environments.
  • Perform regular patching and upgrades, ensuring security and compliance with organizational standards.
  • Implement and maintain system hardening policies (based on CIS/NIST benchmarks).
  • Monitor system performance, troubleshoot issues, and resolve incidents in coordination with other teams.
  • Manage user accounts, permissions, and security policies.
  • Work with Ansible automation platform to streamline deployments and configurations.
  • Participate in backup and recovery planning in collaboration with the Backup team.
  • Support middleware, application, and database teams with Linux-related requirements.
  • Prepare documentation, SOPs, and audit reports as required.
  • Participate in on-call rotation for Linux operations.

Requirements Summary

5-6 years of hands-on Linux system administration experience and a Bachelor's degree in Computer Science, Information Technology, or related field