Role & responsibilities

Network Architecture & Administration
- Design, deploy, and maintain highly available enterprise LAN, WAN, WLAN, and SD-WAN networks.
- Configure, manage, and support enterprise networking devices, including routers, switches, firewalls, and wireless access points.
- Implement and optimize routing and switching technologies such as OSPF, BGP, EIGRP, VLANs, STP, trunking, QoS, and IPv4/IPv6 subnetting.
- Monitor network performance, conduct capacity planning, and optimize bandwidth utilization.
- Manage ISP connectivity, site-to-site VPNs, and remote-access VPN solutions to ensure secure and reliable connectivity.
- Utilize network monitoring and troubleshooting tools such as SolarWinds, PRTG, Wireshark, and Datadog.

System Administration & Virtualization
- Install, configure, administer, and maintain Windows Server and Linux environments.
- Manage core infrastructure services including Active Directory (AD), Group Policy (GPO), DNS, DHCP, and File Servers.
- Deploy, administer,



and optimize virtualization platforms using VMware vSphere/ESXi or Microsoft Hyper-V.
- Plan, implement, and execute Disaster Recovery (DR) strategies and business continuity procedures.

Security & Compliance
- Configure and manage enterprise security solutions, including Fortinet, Cisco Firepower, SonicWall firewalls, IDS, and IPS.
- Perform vulnerability assessments, system audits, and support penetration testing activities.
- Implement Zero Trust Network Access (ZTNA), Network Access Control (NAC), and endpoint security solutions.
- Develop and manage patch management processes for servers, network devices, firmware, and applications.
- Respond to critical security incidents by analyzing logs, investigating threats, and implementing remediation measures.

Operations & Support
- Ensure high availability, reliability, and performance of enterprise network and server infrastructure.
- Troubleshoot complex network, server, and security issues, minimizing downtime and

📌 Walk-in || Network Admin (Chennai)
🏢 Merit Data and Technology
📍 Chennai