Lead Network Security Architect

Mastercard Mastercard · Fintech · O Fallon, MO +1 · Engineering

Lead Network Security Architect responsible for defining, designing, and evolving the enterprise network architecture for performance, reliability, and security. This role involves setting strategic direction for network security platforms, developing standards and roadmaps, and overseeing the design and delivery of complex solutions in a global, hybrid environment. Requires deep expertise in modern cloud networking, zero trust security models, and large-scale enterprise architecture.

What you'd actually do

  1. Develop and maintain comprehensive network architecture blueprints, standards, reference patterns, and multi-year roadmaps.
  2. Architect and design high performance, highly available, and secure network solutions aligned with enterprise strategy.
  3. Identify opportunities for modernization, optimization, and resiliency improvements across the network and security landscape.
  4. Lead and execute strategic network initiatives related to performance engineering, network security, zero trust adoption, automation, and infrastructure transformation.
  5. Define and communicate technology component standards spanning networking, security, cloud, and operating systems.

Skills

Required

  • Enterprise Network Security
  • Zero Trust architectures
  • SASE design patterns
  • global enterprise networking (LAN/WAN, routing, switching, firewalls, encryption)
  • large-scale network security architectures across hybrid and multi-cloud environments
  • delivering complex, mission critical infrastructure projects
  • technical leadership
  • mentorship
  • architectural governance
  • design reviews

Nice to have

  • SASE solutions at a global scale
  • automation frameworks (Terraform, Ansible)
  • infrastructure-as-code methodologies
  • large-scale platform engineering automation patterns
  • integrating network and security platforms with CI/CD pipelines

What the JD emphasized

  • global enterprise networking
  • large-scale design
  • mission critical infrastructure projects