- 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.

- Strong 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.

- Good understanding of security standards and audit processes.

- Strong documentation, analytical, and problem-solving skills

Job Category: Network Security Engineer

Job Type: Full Time

Job Location: Chennai

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