Hasan Yildizhan

• Led the enterprise-wide migration from legacy systems to Microsoft Defender and Intune for
5000+ endpoints.
• Managed CrowdStrike EDR operations specifically for the ATM fleet, ensuring high availability
and security.
• Deployed and optimized Forcepoint DLP and Cofense PhishMe for advanced threat protection.

• Directed the full MPLS to SD-WAN migration using Cisco Meraki across all retail locations.
• Managed security monitoring and log analysis using FortiSIEM.
• Administered CheckPoint firewalls, SentinelOne EDR, and Duo MFA for secure remote access.
• Enhanced identity and endpoint management via Entra (Azure AD), Intune, and Microsoft Defender.
• Enhanced identity and endpoint management via Entra (Azure AD), Intune, and Microsoft
Defender.

• Deployed EPP/EDR/XDR solutions including Kaspersky, Symantec, and Cortex for diverse
enterprise clients.
• Provided end-to-end security consulting, POC management, and technical training.
• Implemented Symantec DLP and Mail Gateway solutions for data leak prevention.

• Conducted technical SIEM demonstrations and proof-of-concept (POC) for global enterprise clients.

• Developed SOC rules, monitored security events, and handled incident response.

• Designed and built scalable network security infrastructures and implemented FortiSIEM.
• Managed the end-to-end deployment and administration of Fortigate Firewalls for various
organizations and clients.
• Managed ISO 27001 & KVKK audit processes and ensured technical compliance.

• Directed the management of core network services (AD, DNS, DHCP), ensuring 24/7 operational
continuity for critical military systems.
• Spearheaded a large-scale firewall migration project to Fortinet, enhancing perimeter security and
traffic visibility.
• Managed and optimized UTM solutions (Checkpoint, Fortinet) and oversaw endpoint protection
across the military network.
• Demonstrated leadership in high-stakes environments, managing complex IT projects and
technical teams.