Network Administrator

Network Administrator (Experienced)

Key Responsibilities:

• Install, configure, and maintain routers, switches, firewalls, load balancers, and VPNs.
• Administer LAN, WAN, WLAN, and VPN infrastructures across multiple office sites.
• Implement routing protocols (BGP, OSPF, EIGRP) with redundancy and failover.
• Manage VLAN segmentation, IP address management, and bandwidth optimization.
• Conduct proactive monitoring of network performance (latency, jitter, uptime).
• Deploy and manage enterprise security tools MDM, NAC, DLP, SIEM – integrated with Active Directory.
• Investigate network and security incidents, prepare RCA, and define preventive actions.
• Conduct periodic patching, firmware upgrades, and vulnerability assessments.
• Manage firewall policies, intrusion prevention, and endpoint compliance rules.
• Collaborate with IT Security and Compliance teams to align with ISO 27001, SOC2, GDPR.
• Provide Level 2/3 escalation support for end-user, application, and infrastructure issues.
• Coordinate with ISPs and vendors for escalations, contract renewals, and SLA adherence.
• Maintain detailed documentation – network topologies, configuration backups, SOPs.
• Support disaster recovery planning, failover testing, and infrastructure upgrades.
• Stay updated with emerging networking and security technologies; recommend improvements.

Skills & Certifications:

• 4–7 years of experience in enterprise network & IT security administration.
• Strong understanding of TCP/IP, DNS, DHCP, VLANs, VPNs, and routing protocols.
• Hands-on experience with firewalls, switches, and enterprise-grade network tools.
• Experience with SIEM, endpoint management, and NAC/DLP/MDM integration.
• Excellent troubleshooting, problem-solving, and RCA reporting skills.
• Preferred Certifications: CCNA/CCNP, Fortinet NSE (4+), CompTIA Security+, Palo Alto PCNSE, ITIL Foundation.