Position Title

Linux System Administrator

Department

Information Technology (IT) / Infrastructure Operations

Experience Required

3–8 Years (can be adjusted based on requirement)

Employment Type

Full-Time

Location

As per company requirement

Job Summary

We are seeking a highly skilled Linux System Administrator responsible for the installation, configuration, administration, monitoring, maintenance, and optimization of Linux-based servers and infrastructure. The ideal candidate will ensure high availability, security, performance, and reliability of enterprise systems while supporting business-critical applications and services.

Key Responsibilities

Linux Server Administration

- Install, configure, and maintain Linux operating systems (RHEL, Rocky Linux, AlmaLinux, CentOS, Ubuntu, Debian, etc.).
- Perform server provisioning, patching, upgrades, and lifecycle management.
- Manage system services, users, groups, permissions, and file systems.
- Troubleshoot operating system, hardware, and application issues.

System Monitoring & Performance Management

- Monitor server health, resource utilization, and application performance.
- Analyze CPU, memory, disk, and network performance bottlenecks.
- Implement proactive monitoring and alerting mechanisms.
- Perform capacity planning and infrastructure optimization.

Storage & Backup Administration

- Manage storage technologies including LVM, RAID, NFS, and SAN/NAS.
- Configure and monitor backup solutions.
- Perform backup validation and restoration testing.
- Ensure disaster recovery readiness.

High Availability & Clustering

- Configure and maintain High Availability (HA) environments.
- Support clustering technologies such as Pacemaker, Corosync, and Keepalived.
- Perform failover and disaster recovery testing.

Security Administration

- Implement Linux security best practices and hardening standards.
- Manage firewalls (iptables, firewalld,



nftables).
- Configure SELinux/AppArmor policies.
- Perform vulnerability remediation and security patch management.
- Support compliance requirements and security audits.

Network Administration

- Configure and troubleshoot network services.
- Manage DNS, DHCP, NTP/PTP, SSH, VPN, and routing configurations.
- Diagnose network connectivity and performance issues.

Database & Application Support

- Support Linux-hosted applications and databases.
- Work with SQL Server on Linux, PostgreSQL, MySQL, and other enterprise applications.
- Coordinate with application teams during deployments and upgrades.

Automation & Scripting

- Develop shell scripts (Bash) for automation.
- Automate routine administrative tasks.
- Create monitoring and maintenance scripts.
- Support configuration management tools where applicable.

Documentation & Reporting

- Maintain infrastructure documentation, SOPs, and operational runbooks.
- Document incident resolutions and troubleshooting procedures.
- Prepare system health and availability reports.

Incident & Problem Management

- Participate in 24×7 operational support when required.
- Troubleshoot critical production incidents.
- Perform root cause analysis (RCA) and implement preventive measures.
- Coordinate with vendors and internal teams for issue resolution.

Required Technical Skills

Operating Systems

- Red Hat Enterprise Linux (RHEL)
- Rocky Linux / AlmaLinux
- Ubuntu Linux
- CentOS Linux

Linux Administration

- User & Group Management
- Process Management




- Service Management (systemd)
- Kernel Management
- Package Management (RPM, YUM, DNF, APT)

Networking

- TCP/IP
- DNS
- DHCP
- SSH
- VPN
- NTP/PTP
- Routing and Firewall Management

Storage

- LVM
- RAID
- NFS
- CIFS/SMB
- SAN/NAS Storage

Monitoring Tools

- Nagios
- Zabbix
- Prometheus
- Grafana
- ELK Stack

Scripting & Automation

- Bash Shell Scripting
- Python (Preferred)
- Ansible (Preferred)

Virtualization & Cloud (Preferred)

- VMware vSphere
- Hyper-V
- KVM
- AWS
- Azure
- Google Cloud

Database Knowledge (Preferred)

- SQL Server on Linux
- PostgreSQL
- MySQL/MariaDB

Qualifications

- Bachelor's Degree in Computer Science, Information Technology, Electronics, or related field.
- Relevant certifications preferred:
- RHCSA (Red Hat Certified System Administrator)
- RHCE (Red Hat Certified Engineer)
- LFCS (Linux Foundation Certified System Administrator)
- CompTIA Linux+

Soft Skills

- Strong troubleshooting and analytical skills.
- Excellent communication and documentation abilities.
- Ability to work under pressure in production environments.
- Team collaboration and stakeholder management skills.
- Robust ownership and accountability.

Preferred Experience

- Managing enterprise Linux environments with 100+ servers.
- Experience with High Availability and Disaster Recovery solutions.
- Experience supporting mission-critical applications.
- Knowledge of ITIL processes and change management.
- Experience with enterprise monitoring and automation tools.

Key Performance Indicators (KPIs)

- Server Availability ≥ 99.9%
- Incident Resolution within SLA
- Successful Backup & Recovery Rate ≥ 99%
- Security Patch Compliance ≥ 95%
- Infrastructure Performance Optimization
- Documentation Accuracy and Completeness

How to Apply ? Email your CV to [email protected]

? Contact: (phone hidden)

📌 Linux System Administrator (Indore)
🏢 Devaditya Technocrats
📍 Indore