L3 Network & Security Lead Engineer

We are looking for a highly experienced L3 Network & Security Lead Engineer to join our Enterprise Infrastructure team. The ideal candidate will be a Subject Matter Expert (SME) with 6- 8 years of handson experience in enterprise networking, cybersecurity, and infrastructure deployment. This role requires expertise in designing, implementing, troubleshooting, and optimizing complex network and security environments while leading L1/L2 engineers and managing critical customer escalations. The successful candidate will play a key role in solution architecture, project execution, customer engagement, and technical leadership across enterprise networking and cybersecurity technologies. Enterprise Network & Security Solution Design Design, implement, and maintain enterprise-grade network and security infrastructures. Lead end-to-end deployment of LAN, WAN, Wireless, Data Center, Firewall, VPN, SD-WAN, SASE, and Zero Trust solutions. Develop scalable, secure, and highly available network architectures aligned with customer requirements. Project Delivery Lead enterprise implementation and migration projects. Prepare High-Level Design (HLD), Low-Level Design (LLD), implementation plans, rollback plans, and technical documentation. Coordinate with customers, OEMs, internal teams, and project managers throughout project lifecycles. Advanced Troubleshooting & Incident Management Act as the final technical escalation point (L3) for critical incidents. Diagnose and resolve complex routing, switching, wireless, firewall, VPN, security, and performance issues. Perform root cause analysis (RCA) and implement permanent corrective actions. Team Leadership Mentor and provide technical guidance to L1 and L2 engineers. Review configurations, technical documentation, and implementation plans. Conduct knowledgesharing sessions and technical training. Support team development and performance improvement initiatives. Customer Relationship Management Build longterm relationships with enterprise customers. Participate in customer meetings, technical workshops, solution presentations, and project kickoffs. Serve as a trusted technical advisor for networking and cybersecurity solutions. Documentation & Compliance Maintain detailed documentation for network architecture, configurations, SOPs, and troubleshooting guides. Ensure compliance with security policies, industry standards, and best practices. Support audits, change management, and documentation reviews. .