Job Summary

We are looking for an experienced OS/System Administrator to manage and support Linux (RHEL) and Windows server environments. The ideal candidate should have hands-on experience in server administration, virtualization, OS patching, performance tuning, security hardening, automation, and troubleshooting in enterprise data center environments.

Key Responsibilities

- Administer and maintain Linux (RHEL) and Windows Server environments.
- Manage physical servers and virtual machines (VMware/Hyper-V/OpenStack or similar).
- Install, configure, upgrade, patch, and maintain operating systems.
- Perform daily health checks for CPU, memory, storage, filesystem, and server performance.
- Monitor system logs, audit logs, backup logs, and troubleshoot OS-related issues.
- Perform server performance monitoring, tuning, and capacity planning.
- Configure and manage user accounts, groups, permissions, and security policies.
- Implement OS security hardening, access controls, firewall configurations, and security best practices.
- Manage Logical Volume Management (LVM), mount points, storage, shared storage, and SFTP.
- Perform OS patch management and vulnerability remediation.
- Handle backup and restore activities.
- Support DR drills and Disaster Recovery activities.
- Coordinate with OEMs, virtualization teams, storage teams, network teams, and application teams for issue resolution.




- Configure and troubleshoot DNS, NTP, NFS, Proxy, and related infrastructure services.
- Integrate servers with SIEM, SCD, ITAM, DAM, monitoring, and logging tools.
- Perform audit compliance activities including VAPT, IS Audit, CSR, and security compliance.
- Develop Shell Scripts/Bash scripts for automation.
- Install and configure enterprise software and server applications.
- Monitor server availability and maintain high uptime.
- Maintain technical documentation, SOPs, and operational procedures.
- Manage cluster services including resource configuration, log monitoring, cluster startup/shutdown, and maintenance.

Required Skills

- Linux Administration (RHEL 7/8/9)
- Windows Server Administration (2016/2019/2022)
- VMware / Virtualization
- Server Installation & Configuration
- OS Patch Management
- Performance Monitoring & Tuning
- Shell Scripting / Bash
- User & Group Administration
- LVM & File System Management
- DNS, NTP, NFS, Proxy
- Backup & Restore
- Server Security Hardening
- Firewall Configuration
- SIEM Integration
- VAPT Remediation
- Audit Compliance
- Disaster Recovery (DR)
- Cluster Administration
- Server Monitoring Tools
- Troubleshooting
- Documentation

Shift

- Willingness to work in 24x7 rotational shifts and provide production support.

📌 Technical Expert - Linux (Mumbai)
🏢 Aarav Global Products & Services
📍 Mumbai