Job Description

:

The Linux Administrator (L2) will be responsible for the installation, configuration, monitoring, and maintenance of Linux servers across production and non-production environments. The role involves providing day-to-day operational support, troubleshooting, and performance optimization, while ensuring high availability, security, and compliance of systems.

Key Responsibilities:

Core Administration & Monitoring

+ Installation & configuration of Linux Operating Systems.
+ Hardening of Linux OS and patch installation.
+ Health monitoring of Linux servers (CPU/Memory/Disk/System Load).
+ OS reboot, shutdown, and start-up procedures.
+ OS log management (rotation, purging) and monitoring of system logs.
+ Disk management, file system management, user & group management.
+ Configuration of network, NTP, and OS parameters.
+ Installation of RPMs/software packages (Java, sudo, lsof, etc.).
+ Management of cron jobs.

Support & Coordination

+ First-level coordination with Application Support and Development teams for OS-related issues.
+ OS support during DB patching, application patching, and hardware maintenance.
+ Troubleshooting and resolution of hardware, software, and communication problems.
+ Logging calls with hardware OEM/AMC vendors for replacement of failed parts.
+ Logging and coordination with software OEM/ATS vendors for software-related issues.
+ Provide L2-level support and resolution of issues escalated by L1.

Advanced Administration

+ Linux Kernel upgrade and OS migration.
+ Installation/configuration of network services (DNS, NFS, SAMBA, YUM server).
+ SAN storage-related configuration in Linux servers.
+ Support for DC/DR switchover and switchback activities.
+ Installation/configuration of Apache and Tomcat servers.
+ Performance monitoring, tuning, automation, and optimization activities.
+ RedHat PCS cluster configuration, troubleshooting, and support.

Architecture, Compliance & Management

+ Planning & designing deployment architecture for Linux servers.
+ Setup and administration of high availability and disaster recovery (HA/DR) environments including clustering, failover, fencing, and recovery.
+ Capacity planning and performance statistics analysis.
+ Formulation of backup and recovery strategies.
+ Audit and compliance support.
+ Documentation, inventory maintenance (servers, users, groups).
+ Team/resource management and coordination with client/vendors/other support teams.

Skills Required:

+ Strong expertise in Linux administration (RHEL/CentOS/Oracle Linux)
+ Hands-on with Apache, Tomcat, DNS, NFS, SAMBA, YUM, SAN configuration
+ Good troubleshooting and problem-solving skills
+ Experience with clustering technologies (RedHat PCS cluster)
+ Strong knowledge of performance tuning and OS-level security
+ Excellent analytical and communication skills
+ Good to Have: Knowledge of scripting (Shell/Python/Perl) for automation, Experience with ITIL-based support processes, Exposure to cloud or containerized environments (Docker/Kubernetes)
+

Preferred Skills / Certifications:

Red Hat Certified System Administrator (RHCSA) / Red Hat Certified Engineer (RHCE)

Educational Qualification:

BE/B.Tech in Computer Science/IT or MCA

Project Management:

+
Posted on:

september 23,2025

Experience Level: Experienced

Contract Type: Department: *