Linux System Administrator III

Job Location: Mumbai(Vikhroli), India

As a System Administrator III Linux, you will be responsible for installing, configuring, maintaining , and supporting Linux/Unix servers, networks, and applications. You will ensure the systems are secure, reliable, and efficient, and play a key role in troubleshooting and resolving issues to maintain optimal system performance.

Key Responsibilities:

• System Installation and Maintenance: Install, configure, and maintain Linux RHEL ( 9x, 8x, 7x, 6x) and OL (6x, 7x , 8x, 9x ) operating systems.

• Performance Monitoring and Troubleshooting: Monitor system performance, detect, diagnose, and resolve issues related to servers, hardware, applications, and software.

• Routine Administration: Perform user management, file system management, backup/restore operations, and administer disk, volume groups, LVM, NFS, and automount.

• System Upgrades and Patching: Implement system upgrades, patches, and handle post-patching issues, following best practices and change management procedures.

• Security and Vulnerability Management: Remediate vulnerabilities, manage firewalls (IPTABLES), and configure KDUMP for crash/kernel dump analysis.

• Networking: Manage IP networking, static routing, and protocols such as FTP, SSH, SMTP, DNS, HTTP/S, DHCP, and Syslog logging.

• Automation and Configuration Management: Use tools like Puppet, Ansible, or equivalent for automation and configuration management.

• Monitoring and Documentation: Utilize SNMP-based monitoring, document system configurations, procedures, and troubleshooting steps.

• Virtualization and Storage: Manage VMWare vSphere , NAS configuration, SAN and NAS storage, and multipathing.

• Incident and Problem Management: Participate in on-call rotations, respond to system emergencies, and provide RCAs on P1 tickets.

• Collaboration and Vendor Coordination: Work with other IT teams to resolve cross-functional issues, ensure seamless integration with other systems, and coordinate with hardware vendors (HP ProLiant, Dell PowerEdge).

• Email Administration: Troubleshoot mail issues ( mailx , sendmail ) and manage client-side LDAP configurations.

Qualifications:

• Education : Bachelor s degree in computer science / information technology / or equivalent stream.

• Certifications : Relevant certifications such as CompTIA Linux+, Red Hat Certified System Administrator (RHCSA), or LPIC-1 are required .

Requirements:

• Experience: 5 years of proven experience as a System Administrator in a similar role.

• Technical Skills: Strong understanding of Unix/Linux operating systems, scripting, and associated technologies.

• Additional Skills: Strong problem-solving skills, experience with performance tuning, and optimizing server configurations.

Work Environment:

• This is a full-time position.

• Candidates must be ready to work 5 days a week from Mumbai office.

• Candidates should be ready to work in rotational schedules / shifts and supporting 24x7 operations.