Positive in Communication
Salary: Upto 7.5 LPA
Notice Period: Immediate Joiner
Exp: 3+ Years Relevant
Location: Chennai

Key Responsibilities:
Firewall Management: Configure and troubleshoot Fortinet, Palo Alto, and Cisco firewalls including policies, NAT, segmentation, routing, UTM, upgrades, migrations, and HA.
SD-WAN Operations: Deploy and optimize SD-WAN environments (overlays/underlays), troubleshoot routing (BGP/OSPF), tunnel issues, dual-WAN failover, SLA routing, and performance using QoS and link-health monitoring.
Cloud Network Security: Implement and audit AWS/GCP security controls (NSGs, firewall policies, VPC routing, peering, WAF) and resolve multi-region connectivity issues.
WAF Management: Perform onboarding, rule tuning, exception handling, and false-positive analysis.
Proxy & Zscaler: Manage Zscaler ZIA configurations, authentication methods, routing policies, and resolve complex proxy issues.
VPN & Secure Access:



Configure and troubleshoot complex IPSec/SSL-VPN tunnels and analyze application flows for security rule creation.
Security Architecture Support: Assist Leads during network design, segmentation planning, and ensure compliance with ISO 27001, SOC 2, and client requirements.
Documentation: Prepare HLD/LLD, change documentation, and maintain Visio diagrams for firewalls, SD-WAN, and cloud networks.

Skills & Experience :
Hands-on experience with Fortinet/Palo Alto/Cisco firewalls.
Solid SD-WAN troubleshooting (overlay tunnels, routing protocols, SLA policies).
Knowledge of AWS/GCP network security concepts and tools.
Experience with VPN, Zscaler, WAF, and enterprise routing/security.
Positive understanding of security standards and audit processes.
Robust documentation, analytical, and problem-solving skills

Job Category: Network Security Engineer

Job Type: Full Time

Job Location: Chennai

📌 Network Security Engineer Chennai (India)
🏢 Fourth Dimension Technologies
📍 India