The System Administrator will be responsible for the installation, configuration, administration, monitoring, maintenance, security, backup and troubleshooting of IT infrastructure, including servers, operating systems, virtualization platforms, storage, networks and associated enterprise applications.

The position will ensure the availability, performance, security and reliability of critical IT infrastructure and services and provide timely technical support for infrastructure-related incidents and requirements.

Key Responsibilities

A. Server Administration

- Install, configure and administer Windows and Linux servers.
- Manage physical and virtual servers in enterprise environments.
- Perform server hardening, patch management, upgrades and configuration changes.
- Monitor server health, CPU, memory, disk, network and application-related resources.
- Troubleshoot server performance, availability and connectivity issues.
- Manage system services, scheduled tasks, processes and system logs.
- Maintain server configuration and infrastructure documentation.

B. Virtualization
- Administer virtualization platforms such as VMware, Hyper-V, Proxmox or equivalent.
- Create, configure, modify and decommission virtual machines.
- Manage VM resources including CPU, memory, storage and network interfaces.
- Monitor virtualization infrastructure and resolve performance issues.
- Support VM migration, snapshots, cloning and high-availability configurations.
- Maintain appropriate resource allocation and capacity planning.

C. Storage Administration
- Administer enterprise storage systems, SAN/NAS and local server storage.
- Configure and monitor storage capacity, performance and availability.
- Manage RAID configurations and storage volumes where applicable.
- Monitor disk utilization and proactively identify capacity requirements.
- Support storage expansion, migration and data movement activities.
- Ensure appropriate access controls for stored data.

D. Backup and Disaster Recovery
- Configure and monitor server and application backups.
- Manage backup schedules, retention policies and backup storage.
- Regularly verify backup integrity and perform restoration tests.
- Support Disaster Recovery (DR) and Business Continuity (BC) activities.
- Participate in DR drills and maintain recovery procedures.
- Ensure critical systems meet defined RPO and RTO requirements.

E. Network Administration
- Troubleshoot server-side network connectivity and communication issues.
- Configure and manage server network interfaces, VLANs, routing and DNS-related settings.
- Coordinate with network/security teams for firewall rules, ports and connectivity requirements.
- Monitor network-related issues affecting servers and applications.
- Support secure connectivity between data centres, cloud environments and enterprise systems.





F. Active Directory & Identity Management
- Administer Microsoft Active Directory, organizational units, users and groups.
- Manage Group Policies and authentication-related configurations.
- Manage server and workstation access permissions.
- Support integration with LDAP, SSO and other identity management systems.
- Implement appropriate access controls based on organizational security policies.

G. Security Administration
- Implement server security hardening and baseline configurations.
- Apply operating system and security patches in accordance with approved procedures.
- Monitor security logs and assist in identifying suspicious activities.
- Coordinate with cybersecurity teams for vulnerability remediation.
- Manage antivirus/endpoint protection on applicable systems.
- Ensure least-privilege access and appropriate administrative controls.
- Support security audits, vulnerability assessments and compliance requirements.

H. Monitoring and Performance Management
- Monitor availability and performance of critical infrastructure.
- Configure alerts for CPU, memory, disk, services and system availability.
- Analyze system logs and performance metrics.
- Identify potential infrastructure bottlenecks and recommend corrective measures.
- Prepare infrastructure availability and performance reports.

I. Cloud & Data Centre Administration
- Support administration of on-premises and cloud infrastructure.
- Assist in migration of workloads between data centres/cloud environments.
- Manage virtual machines, storage, networking and security configurations in cloud environments.
- Support hybrid-cloud infrastructure where applicable.
- Coordinate with cloud service providers and data centre teams.

J. Incident & Problem Management
- Respond to infrastructure-related incidents and service requests.
- Diagnose and resolve hardware, operating system, virtualization and infrastructure issues.
- Perform root-cause analysis for recurring incidents.
- Maintain incident and problem-resolution documentation.
- Escalate complex issues to vendors or specialized technical teams when required.
- Participate in planned maintenance and emergency restoration activities.

K. Documentation & Compliance
- Maintain updated documentation of:
- Server inventory
- IP addresses and hostnames
- Operating systems
- VM configurations
- Storage allocation
- Backup configurations
- Network dependencies




- Security configurations
- Disaster recovery procedures
- Maintain Standard Operating Procedures (SOPs).
- Ensure infrastructure changes are implemented through approved change-management procedures.
- Assist in IT audits and compliance assessments.

L. Vendor & Procurement Support
- Coordinate with OEMs, system integrators and technology vendors.
- Provide technical inputs for procurement of servers, storage, networking and software.
- Review technical specifications and compliance statements.
- Support installation, commissioning and acceptance testing of IT infrastructure.
- Monitor vendor performance and resolution of technical issues.

Required Technical Skills

1. Operating Systems

- Windows Server
- Linux/Unix
- Server installation, configuration, patching and troubleshooting

1. Virtualization

- VMware vSphere/ESXi
- Microsoft Hyper-V
- Proxmox VE or equivalent virtualization technologies

1. Infrastructure

- Physical and virtual servers
- SAN/NAS
- RAID
- Storage management
- Data centre infrastructure

1. Networking

- TCP/IP
- DNS
- DHCP
- VLAN
- Routing fundamentals
- Firewall and network security fundamentals

1. Microsoft Technologies

- Active Directory
- Group Policy
- DNS/DHCP
- Windows Server administration

1. Backup & DR

- Enterprise backup solutions
- Backup monitoring
- Restoration
- Disaster Recovery
- RPO/RTO concepts

1. Security

- Server hardening
- Patch management
- Vulnerability management
- Antivirus/EDR
- Access control
- Security logging

1. Monitoring

- Infrastructure monitoring tools
- Performance monitoring
- Log analysis
- Alert management

Qualifications Essential:

- Bachelor's degree in Computer Science, Information Technology, Computer Engineering or a related discipline.

Desirable Certifications:

- Microsoft Certified: Windows Server / Azure certifications
- VMware VCP
- Red Hat certifications
- Linux certifications
- CCNA
- CompTIA Server+ / Network+ / Security+
- ITIL Foundation
- Relevant cloud certifications

Experience

- Experience in system/server administration and IT infrastructure management.
- Hands-on experience with Windows/Linux server environments.
- Experience in virtualization, storage, backup and disaster recovery.
- Experience in troubleshooting enterprise infrastructure.
- Experience in data centre or cloud infrastructure will be an advantage.

Key Competencies

- Solid troubleshooting and analytical skills
- Systematic problem-solving approach
- Infrastructure monitoring and capacity planning
- Incident and change management
- Documentation skills
- Ability to work under pressure during critical incidents
- Good communication and coordination skills
- Ability to work with vendors and technical teams
- Commitment to information security and operational procedure

📌 System Administrator (New Delhi)
🏢 National Institute for Smart Government (NISG)
📍 New Delhi