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L3 Linux Administrator - Red Hat / CentOS

L3 Linux Administrator - Red Hat / CentOS

Team ComputersPune
30+ days ago
Job description

Role Overview :

We are seeking an experienced Linux Administrator (L3) to manage, configure, and optimize enterprise-level Linux and Solaris environments.

The ideal candidate will have hands-on expertise in storage solutions, patch management, performance tuning, and security hardening.

This role requires strong problem-solving skills, proactive monitoring, and the ability to lead complex infrastructure support with minimal supervision.

Key Responsibilities :

Linux & Solaris Administration :

  • Manage and administer Red Hat, CentOS, and Solaris servers.
  • Monitor system performance and ensure high availability of critical services.

Storage Management (OSD & Ceph Storage) :

  • Configure, maintain, and optimize distributed storage systems.
  • Manage OSD nodes and Ceph clusters for scalability and performance.
  • Patch Management (Satellite Patching) :

  • Perform patching and update activities using Red Hat Satellite.
  • Ensure compliance with security and performance updates.
  • Web & Application Servers :

  • Configure and manage Apache HTTP Server, including performance tuning and troubleshooting.
  • Implement best practices for high-availability setups.
  • Security & Compliance :

  • Manage user access controls, file permissions, and Linux firewall configurations.
  • Perform system hardening and ensure compliance with security standards.
  • Backup & Disaster Recovery :

  • Design, implement, and test backup and recovery procedures.
  • Ensure data integrity and availability during DR scenarios.
  • Container & Cloud Platforms (OpenShift) :

  • Deploy, manage, and troubleshoot OpenShift clusters.
  • Support containerized application environments and CI / CD pipelines.
  • Incident & Problem Management :

  • Provide L3 level support for escalated incidents and complex problem resolution.
  • Document processes, maintain SOPs, and ensure adherence to SLAs.
  • Required Skills & Qualifications :

  • Strong hands-on experience with Linux (RHEL / CentOS / Ubuntu) and Solaris systems.
  • Experience with Ceph Storage / OSD management.
  • Expertise in Red Hat Satellite patching.
  • Proficiency in Apache HTTP server configuration & tuning.
  • Solid understanding of Linux security practices (firewalls, permissions, access control).
  • Experience in backup & disaster recovery solutions.
  • Working knowledge of OpenShift and container orchestration.
  • Strong troubleshooting and performance tuning skills.
  • Ability to work independently and lead L2 engineers.
  • Preferred Qualifications :

  • Red Hat Certified Engineer (RHCE) or equivalent certification.
  • Knowledge of automation tools (Ansible, Puppet, or Chef).
  • Exposure to cloud platforms (AWS, Azure, GCP) is an advantage.
  • (ref : hirist.tech)

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    Linux Administrator • Pune

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