Senior IT Administrator

DRC Systems; Gandhinagar; On-site; INR 1,500,000 - 2,100,000; Full time

Job summary

DRC Systems is seeking 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 to keep our IT backbone highly available and audit-ready across offices and remote users.

The role requires expertise in firewall and router management, VPNs, and patching Windows/Linux environments, with focus on zero-trust principles and incident response.

Qualifications

• Hands-on networking with VLANs, routing, and firewall rules.
• Experience with SIEM deployment, log management and incident triage.
• Experience patching Windows/Linux servers and hardening systems.
• Administration of Active Directory, DNS, DHCP and GPO.
• Awareness of zero-trust concepts and endpoint protection.

Responsibilities

• Run and secure campus network and IT infrastructure operations.
• Configure and manage routers, firewalls, and L2/L3 switches.
• Maintain secure LAN/WAN with segmentation and IT governance.
• Manage VPNs, redundancy, and incident resolution.
• Monitor, log, and alert; operate Zabbix and Grafana dashboards.
• Onboard logs into SIEM; build correlation rules and respond to incidents.
• Coordinate vulnerability assessments and patching.
• Oversee backup, DR planning and ISO27001/CMMI audit readiness.

Skills

VLAN/STP/LACP/OSPF/BGP/NAT/VPN

Fortinet/Checkpoint

Cisco/HP switches

Log analysis (Zabbix/Grafana)

SIEM platform

Patch management

Windows Server & Linux admin

Backup & recovery

Zero trust / endpoint protection

Education

Graduate (B.E./B.Tech/BCA/B.Sc IT or equivalent)

Tools

Fortinet

Checkpoint

Cisco/HP switches

Zabbix

Grafana

WSUS/SCCM/Intune

Ansible

Red Hat Satellite

Job description

Experience: 5+ years

Location: GIFT City, Gandhinagar (Primary)

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

• 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
• Monitoring, Logging & Alerting
• 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
• 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 elevate security incidents
• Coordinate vulnerability assessments and track remediation
• Run periodic firewall rule audits and policy optimisation
• Patch Management & Hardening
• 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
• Server & Endpoint Administration
• 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
• 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)
• VMware/KVM virtualisation
• 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.