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Linux Administrator @ Infogain

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 Linux Administrator

Job Description

Role & responsibilities


Looking for Immediate joiners only and Location: Noida

Job Summary:

The Linux Administrator (L1/L2) will be part of the ISS team, working closely with developers from multiple projects to ensure smooth operations of bare-metal and cloud-based (AWS, Azure) Linux environments. The role requires expertise in configuring critical services like LAMP stack, Git, and SVN while emphasizing Data Center management, Virtualization, team collaboration, and ITIL-based ticketing tools (JIRA, ServiceNow).


Job Description:


Worked in Operating Systems: RHEL, CentOS, Ubuntu, Debian, SUSE Networking: IP addressing, DNS, DHCP, Routing Servers & Services: Apache, Nginx, MySQL, PostgreSQL, Samba, NFS, SSH Monitoring Tools: Nagios, Zabbix, Prometheus Security & Authentication: SSSD, LDAP, Kerberos Version Control & CI/CD: Git, SVN, Basic Jenkins knowledge

Key Responsibilities:

1. System Administration & Maintenance

  • Perform daily health checks (CPU, memory, disk usage, logs).
  • Manage user accounts, groups, and access permissions.
  • Handle system startup/shutdown, file system management (LVM, RAID).
  • Ensure server uptime and proactive monitoring.

2. Incident Management (L1 Support)

  • Troubleshoot boot failures, performance degradation, and network issues.
  • Analyze system logs (Syslog, Journalctl, Dmesg) for issue identification.
  • Restart essential services (Apache, Nginx, MySQL, SSH, etc.).
  • Reset passwords, unlock accounts, and manage security settings.
  • Escalate critical issues to L3 teams.

3. Patch Management & Security

  • Apply OS patches and security updates (YUM, APT, DNF).
  • Configure and manage firewalls (iptables, firewalld, UFW) and SELinux/AppArmor.
  • Conduct vulnerability scans and enforce security best practices.

4. Critical Services & Dev Team Collaboration

  • Set up and manage LAMP servers (Linux, Apache, MySQL, PHP) for development teams.
  • Configure Git, SVN repositories for version control.
  • Work closely with developers to support deployments and infrastructure needs.

Preferred candidate profile

Perks and benefits

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: Infogain
Location(s): Noida, Gurugram

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Keyskills:   Linux Administration Ubuntu Redhat Linux Kerberos Debian SUSE Linux LDAP Rhel Linux Linux System Administration RHEL Centos

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Infogain

A global digital engineering company delivering technology solutions that accelerate business outcomes. It specializes in cloud, data, AI, and experience-led transformation for enterprises across industries.