Define and Architect enterprise-grade security reference architectures, overseeing the full lifecycle implementation of key solutions including, but not limited to, Endpoint Detection & Response (EDR), Data Loss Prevention (DLP), Multi-Factor Authentication (MFA) systems, and Data-At-Rest Encryption. Design, deploy, and maintain security-focused network infrastructure, including Next-Generation Firewalls (Palo Alto, Fortinet, or similar), Intrusion Detection/Prevention Systems (IDS/IPS), and VPN/access control platforms, enforcing strict network segmentation policies.