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