Network Security Engineer (CCIE Certified)

Cognizant is seeking a Network Security Engineer for a full-time remote opportunity. The role involves engineering and maintaining VPN solutions, supporting firewall configurations, and collaborating on security architecture.

Responsibilities:

• Engineer and maintain site-to-site and remote access VPN solutions (IPsec, SSL/TLS, DMVPN)
• Troubleshoot VPN client connectivity issues across multiple platforms (Windows, macOS, mobile)
• Support firewall and security policy configuration tied to VPN services
• Perform root cause analysis on tunnel failures, latency, and authentication issues
• Collaborate with internal teams on access and security architecture

Requirements:

• CCIE Security (certified, not written-only)
• 5+ years of hands-on experience with enterprise VPN technologies
• Strong knowledge of IPsec, IKEv2, SSL VPN, and related protocols
• Experience troubleshooting VPN clients (AnyConnect, GlobalProtect, or equivalent)
• Solid understanding of PKI, certificate-based authentication, and MFA integration
• Familiarity with firewall platforms (ASA, Palo Alto, Fortinet)
• Experience in large-scale enterprise or service provider environments
• Exposure to Zero Trust / ZTNA frameworks