Senior IT Administrator

DRC Systems Pvt. Ltd; Gandhinagar; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

DRC Systems Pvt. Ltd. is seeking a hands-on Senior IT Administrator to run and secure campus network and IT infrastructure across offices and remote users.

You will own day-to-day network operations, log monitoring, SIEM, and patch management to keep systems highly available, secure, and audit-ready. The role requires strong hands-on networking, firewall, and AD/Linus administration skills, with a focus on zero-trust security, patching, and compliance readiness.

Qualifications

• Hands-on networking: VLANs, STP, LACP, OSPF/BGP, NAT and VPN.
• Fortinet and/or Check Point firewall configuration and troubleshooting.
• Cisco/HP L2/L3 switch management.
• Log analysis, monitoring, and alerting with Zabbix and Grafana.
• Working experience with a SIEM platform.
• Patch management for Windows and Linux environments.
• Windows Server, Linux, and Active Directory administration.
• Zero trust and endpoint protection understanding.

Responsibilities

• Operate and secure campus network infrastructure and IT backbone.
• Monitor logs, alerts, and manage SIEM incidents; drive remediation.
• Oversee patch lifecycle and vulnerability management across Windows and Linux.
• Administer Windows Server, Linux, AD, GPO, DNS, DHCP, and file services.
• Coordinate ISO27001/CMMI compliance activities and audit readiness.
• Implement backup/DR strategies and ensure system hardening.

Skills

Network engineering

Firewall configuration

VPN administration

Log analysis

SIEM operations

Patch management

Windows/Linux admin

Active Directory & GPO

Zero trust concepts

Education

Bachelor's degree in IT/CS

Tools

Fortinet Firewall

Check Point Firewall

Cisco/HP switches

Zabbix

Grafana

SIEM platforms

WSUS/SCCM/Intune

Ansible

Red Hat Satellite

Job description

Join us in building scalable, intelligent solutions that drive real business impact.

• Experience 5+ years
• Qualification Graduate (B.E./B.Tech/BCA/B.Sc IT or equivalent)
• Shift 10:00 AM to 06:30 PM

About the Role

We are looking for a hands-on Senior IT Administrator to run and secure our campus network and IT infrastructure. You will own day-to-day network operations, log monitoring and alerting, SIEM, and patch management, keeping our IT backbone highly available, secure, and audit-ready across offices and remote users.

Key Responsibilities

1. Network Management

• Configure, manage, and troubleshoot routers, firewalls (Fortinet, Checkpoint), and L2/L3 switches (Cisco/HP)
• Manage VLANs, STP, LACP, OSPF/BGP, NAT, and routing policies
• Maintain secure campus LAN/WAN with segmentation and zero-trust principles
• Manage site-to-site and remote access VPNs
• Ensure redundancy, HA, and failover; handle L2/L3 incident resolution
• Configure and maintain Zabbix monitoring and Grafana dashboards for network and infrastructure health
• Tune alerts to reduce noise and define escalation policies
• Analyse network performance and support capacity planning
• Review logs from firewalls, switches, servers, and endpoints to identify anomalies

3. SIEM & Security Operations

• Onboard log sources into the SIEM (Wazuh, Splunk, QRadar, Elastic, Sentinel, or similar)
• Build and tune correlation rules and use cases; triage and escalate security incidents
• Coordinate vulnerability assessments and track remediation
• Run periodic firewall rule audits and policy optimisation
• Own the patch lifecycle for Windows and Linux servers and endpoints: test groups, rollout, rollback, and compliance reporting
• Use patch tooling (WSUS/SCCM/Intune, Ansible, Red Hat Satellite, or equivalent)
• Apply server and endpoint hardening baselines
• Administer Windows Server and Linux environments, including Active Directory (GPO, DNS, DHCP, OU, RBAC) and file servers
• Manage endpoint onboarding, security compliance, and asset lifecycle
• Support email security and user access governance

6. Compliance, Backup & DR

• Support ISO 27001 and CMMI audit readiness with evidence, policies, and reviews
• Implement and test backup and disaster recovery strategies
• Maintain awareness of data loss prevention practices

Must-Have Skills

• Strong hands-on networking: VLAN, STP, LACP, OSPF, BGP, NAT, VPN
• Hands-on Fortinet and/or Checkpoint firewall configuration and troubleshooting
• Cisco/HP L2/L3 switch management
• Log analysis, monitoring, and alerting (Zabbix, Grafana)
• Working experience with a SIEM platform
• Patch management process and tooling for Windows and Linux
• Windows Server, Linux, and Active Directory administration
• Backup and recovery implementation
• Understanding of zero trust and endpoint protection

Good to Have

• Kubernetes exposure (network policies, ingress, basic troubleshooting)
• Scripting/automation: PowerShell, Bash, Ansible
• Prior exposure to ISO 27001 / CMMI audits

Preferred Certifications

CCNA/CCNP, Fortinet NSE, Checkpoint (CCSA/CCSE), RHCE, Microsoft Certified, or a security certification such as Security+ or CEH.