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Sr. Linux Administrator

2 weeks ago

Navi Mumbai, Maharashtra, India N2S Full time

Experience Required : 6+ Years

Educational Qualification –BE/BTech/MCA/MSC cs

Bachelor's degree in Computer Science/IT or any other related technical Qualifications

Certifications from reputed institutes in RHEL (preferable but mandatory for degree other than Computer Science/IT or any other related technical Qualifications)

Job locations: Navi Mumbai (On-site role) & need to work in rotational shifts (24*7 environment)

Job Summary:

We are seeking a highly skilled and analytical Senior Linux System Administrator to manage and maintain mission-critical Linux systems across enterprise environments. The ideal candidate brings over 6 years of experience in Linux server administration , system hardening, performance tuning, and infrastructure integration, with a focus on automation, security, and high availability.

Key Responsibilities:

Manage Linux servers including installation, patch management, backup, user management, and performance monitoring.

Administer and troubleshoot services like NFS, SAMBA, FTP, kdump, and cron jobs.

Implement OS-level hardening, RAID configuration, and cluster management.

Perform logical volume management (LVM), SAN setup, and multipathing.

Upgrade RHEL versions (e.g., RHEL 7 to RHEL 8) with minimal downtime.

Configure and manage file sharing, shell scripting for task automation.

Install and configure Oracle 12c/19c prerequisites on RAC and standalone environments.

Conduct VAPT remediations and apply security compliance (SCD).

Integrate with enterprise systems: SIEM, DAM, ITAM, and PIMS.

Participate in DR drills and maintain PR-DR sync.

Use tools like Nagios, Dynatrace, and HEAL for infrastructure monitoring.

Apply patches using BMC TSSA tool (BMC- TrueSight Server Automation).

Implement network security policies using Iptables/Firewalld and access lists.

Good knowledge of User Management, Linux system file, boot process and Run levels.

Required Skills:

Strong hands-on experience with Red Hat Enterprise Linux (RHEL)

Proficiency in Shell scripting, RAID, SAN, and Cluster configurations

Experience with Oracle database server prerequisites, VMware virtualization

Familiarity with Nagios, Dynatrace, HEAL, TSSA

Knowledge of IT security best practices and compliance tools

Excellent troubleshooting and network diagnostic skills