Senior Network & Security Engineer || Contract || Chennai || Face to face interview

Senior Network & Security Engineer Contract Chennai Face to face interview Key Responsibilities Network & Security Operations • Provide L3/L4 support for complex network and security incidents • Perform advanced troubleshooting for LAN, WAN, wireless, and security issues • Lead major incident management (MIM) and ensure timely resolution • Perform Root Cause Analysis (RCA) and preventive actions Design & Implementation • Design and implement enterprise network architectures • Deploy and manage SD-WAN solutions (Fortinet / Meraki) • Configure high availability (HA), redundancy, and failover mechanisms • Support network transformation and modernization initiatives Firewall & Security Management • Manage firewall rule lifecycle (creation, review, optimization) • Configure and maintain: o IPS/IDS policies o NAT rules o Threat protection policies • Ensure compliance with enterprise security standards VPN & Connectivity • Configure and troubleshoot: o Site-to-Site VPN (IPSec) o Remote Access VPN / SSL VPN • Optimize connectivity across global locations Wireless & Campus Networks • Support Cisco and Meraki wireless solutions (MR / WLC) • Perform wireless optimization, RF tuning, and troubleshooting Change & Governance • Handle change management activities (CAB, risk assessment) • Maintain technical documentation, SOPs, and architecture diagrams • Ensure adherence to ITIL processes Mentorship & Leadership • Mentor and guide L1/L2 engineers • Act as technical SME for network/security escalations • Work closely with architects, vendors, and stakeholders