LEAD ADMINISTRATOR L1

Job Description: Senior Network & Security Engineer / Network Security Lead

We are seeking an experienced Senior Network & Security Engineer with strong expertise in enterprise network architecture, routing, switching, wireless infrastructure, firewalls, and network security. The ideal candidate will have hands-on experience managing complex Data Center (DC), Disaster Recovery (DR), LAN/WAN, security, and wireless environments, along with proven capabilities in infrastructure implementation, migration, troubleshooting, and vendor coordination.

Key Responsibilities

• Manage and support enterprise DC/DR, LAN, WAN, wireless, and network security infrastructure.
• Design, implement, configure, and troubleshoot Cisco and Juniper routers and switches.
• Administer enterprise firewalls including Palo Alto, Fortinet FortiGate, and Check Point.
• Configure and troubleshoot OSPF, EIGRP, BGP, MPLS, VRF, PBR, HSRP, VRRP, GLBP, VLAN, VTP, STP, EtherChannel and VPC.
• Manage Cisco WLC 5500/8540/9800 series and enterprise wireless access points.
• Configure and manage ACLs, NAT, Site-to-Site VPN, TACACS, 802.1X, Cisco ISE, WAF and network security policies.
• Participate in deployment and management of SOC and Privileged Access Management (PAM) solutions.
• Plan and execute network migrations, hardware refreshes, IOS upgrades, link commissioning and production changes.
• Develop HLD/LLD diagrams, implementation plans, technical documentation, hardening standards, SOPs and knowledge-transfer documents.
• Monitor infrastructure using tools such as Cisco DNA Center, Cisco Prime, SolarWinds and other NMS platforms.
• Perform network capacity planning, bandwidth assessment, hardware sizing and infrastructure optimization.
• Troubleshoot critical network/security incidents and engage OEM/TAC teams for priority resolution.
• Coordinate with vendors, OEMs, internal infrastructure teams and business stakeholders for project delivery.
• Manage incidents, service requests, changes and operational activities through ServiceNow/ITSM processes.
• Maintain network configuration backups, security standards and disaster-recovery readiness.

Required Technical Skills

• Networking: Cisco Nexus/Catalyst, Juniper, LAN/WAN, MPLS
• Routing: BGP, OSPF, EIGRP, Static Routing
• Security: Palo Alto, Fortinet, Check Point, Cisco ISE, VPN, ACL, NAT
• Wireless: Cisco WLC/AP, Ruckus, Aruba
• Monitoring: Cisco DNA Center, Prime, SolarWinds
• Documentation: HLD, LLD, hardening and implementation documentation

Preferred Certifications

• CCNA Routing & Switching
• CCNP Routing & Switching
• Fortinet NSE 1, 2 & 3
• Palo Alto Network Security
• Check Point Security Administration (CCSA)

 

Mandatory Skills: Network Data Admin .

 

Experience: 5-8 Years .

 

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