Lead Network Security Engineer

We are looking for a skilled and strategic Lead Network & Security Engineer to architect, manage, and secure enterprise-wide network systems. This senior role demands deep technical expertise across firewalls, VPN, IPS, Zscaler cloud security, switching technologies, SD-WAN, and wireless solutions. Youll lead design initiatives, mentor engineers, and ensure robust security postures across complex hybrid :

• Design and manage firewall deployments using Cisco ASA, Fortinet FortiGate, and Checkpoint, including advanced rulebase optimization and threat mitigation
• Architect, configure, and monitor VPN solutions (IPsec, SSL VPN) for secure connectivity across global networks
• Oversee implementation and tuning of Intrusion Prevention Systems (IPS) to defend against evolving threats
• Administer and optimize Zscaler Internet Access (ZIA) and Private Access (ZPA) policies for cloud security and access control
• Lead Layer 2 / 3 switching operations, including VLAN configuration, Spanning Tree Protocol (STP) tuning, and traffic segmentation
• Deploy and maintain Fortinet SD-WAN solutions for resilient connectivity and bandwidth optimization
• Manage enterprise wireless infrastructure across Cisco Wireless LAN Controller (WLC), Aruba, and Meraki platforms for performance and security
• Ensure reliable and secure operation of network services like DNS, DHCP, NTP, including redundancy and fault-tolerance
• Conduct network risk assessments, penetration testing coordination, and remediation planning
• Collaborate with cross-functional teams on security posture improvements, incident response strategy, and zero-trust architecture
• Document network diagrams, policies, procedures, and change requests with a focus on audit readiness

Qualifications :

(ref : hirist.tech)