Senior Network Security Engineer

We are seeking a highly experienced Senior Network Security Architect to serve as a technical leader responsible for the design, implementation, optimization, and operational support of our enterprise network security environment. This role combines hands-on engineering, solution architecture, and Level 3 operational support responsibilities across multiple network security technologies, with a strong emphasis on Zscaler, Zero Trust, and cloud security. 

The ideal candidate is an experienced network security professional who can balance strategic architecture with day-to-day operational leadership. You will partner closely with Network, Security, Identity, Infrastructure, and Application teams to deliver scalable, secure, and highly available solutions while mentoring engineers, leading complex troubleshooting efforts, and driving operational excellence. 

Key Responsibilities 

Network Security Architecture 

• Design, implement, and optimize enterprise network security solutions supporting on-premises, cloud, and hybrid environments. 

• Architect scalable Zero Trust security solutions utilizing technologies including Zscaler, next-generation firewalls, VPNs, secure web gateways, cloud security services, and network segmentation. 

• Lead evaluations, Proofs of Concept (POCs), and implementation of new security technologies and services. 

• Develop technology roadmaps, standards, and best practices for enterprise network security. 

• Collaborate with network, security, infrastructure, and identity teams to ensure secure and resilient architectures. 

Engineering & Operations 

• Serve as the senior technical escalation point for complex network security incidents and production issues. 

• Troubleshoot advanced networking, DNS, routing, authentication, proxy, SSL/TLS, and application connectivity issues. 

• Configure, manage, and optimize enterprise security technologies including firewalls, VPNs, secure web gateways, cloud access security solutions, and Zero Trust platforms. 

• Perform root cause analysis for recurring or high-impact incidents and drive long-term remediation. 

• Monitor platform health, performance, and user experience using enterprise monitoring and observability tools. 

• Participate in critical incident response and support a highly available production environment. 

• Zscaler Administration 

• Administer and optimize Zscaler services including ZIA, ZPA, and ZDX. 

• Configure security policies, SSL inspection, traffic forwarding, PAC files, IPSec/GRE tunnels, and App Connector deployments. 

• Support Zero Trust access policies, secure application access, and cloud security initiatives. 

• Collaborate with identity teams to integrate auth