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Linux Admin with Red Hat (L1 & L2 Support) @ Cognizant

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Cognizant  Linux Admin with Red Hat (L1 & L2 Support)

Job Description

Preferred candidate profile:

Skill: Linux Admin + Red hat Satellite

Location: Bangalore, Coimbatore & Hyderabad

Experience: 1.8 to 4.8 years L1 & L2 Support

Shift: 24/7 Rotational shift


Role & responsibilities


Linux Engineer L1 (Support / Operations) (0- 3 Years)

Responsibilities

  • Monitor Linux servers and respond to alerts.
  • Handle basic incident tickets, service requests, and monitoring alarms.
  • Perform routine activities:
    • User & group management
    • File system checks
    • Disk space monitoring
    • Service restarts
  • Execute predefined SOPs and runbooks.
  • Perform basic troubleshooting for:
    • Login issues
    • CPU/memory/disk alerts
    • Process or service failures
  • Escalate unresolved issues to L2/L3.
  • Document resolutions and update knowledge base.

Skills

  • Basic knowledge of Linux OS (RHEL/CentOS/Ubuntu).
  • Familiarity with:
    • Linux commands
    • System logs
    • systemd services
  • Understanding of ITIL concepts.
  • Willingness to work in 247 shifts.

Linux Engineer L2 (System Administration) (3 5 Years)

Responsibilities

  • Provide advanced production support for Linux systems.
  • Independently resolve incidents and standard changes.
  • Perform system administration tasks:
    • Patch management
    • OS upgrades
    • User access audits
  • Troubleshoot OSlevel issues:
    • Performance bottlenecks
    • Disk, memory, CPU issues
    • Boot/startup problems
  • Manage storage and filesystems:
    • LVM
    • ext4 / XFS
  • Support middleware components (Apache, Nginx, Tomcat basic).
  • Apply basic security hardening.
  • Coordinate with application, DB, and cloud teams.
  • Participate in oncall rotations.

Skills

  • Strong handson experience with Linux administration.
  • Knowledge of:
    • Networking (DNS, NTP, TCP/IP)
    • SSH, permissions, cron jobs
  • Experience with monitoring tools:
    • Nagios, Zabbix, Grafana, Splunk (any)
  • Basic scripting (Shell).
  • Virtualization exposure (VMware/KVM).

Job Classification

Industry: IT Services & Consulting
Functional Area / Department: IT & Information Security
Role Category: IT Infrastructure Services
Role: IT Infrastructure Services - Other
Employement Type: Full time

Contact Details:

Company: Cognizant
Location(s): Hyderabad

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Keyskills:   Ubuntu Linux System Administration RHEL Centos Redhat Satellite

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Cognizant

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