Arul Sezhian

Lead the enterprise Cyber Threat Intelligence (CTI) function for a global healthcare technology organization, driving intelligence-led security operations and proactive defense strategies. Provide strategic security advisory services and operationalize threat intelligence to improve detection and incident response.

Provided operational leadership for the Security Operations Centre, ensuring continuous monitoring, incident detection, investigation, and response. Led security event analysis and incident management using McAfee SIEM and enterprise security monitoring platforms.

Led the Intrusion Prevention Systems (IPS) team responsible for monitoring and protecting enterprise network infrastructure. Managed SOC reporting, operational dashboards, and service performance metrics, and served as SOC Process Trainer.

Monitored enterprise IDS/IPS environments using IBM SiteProtector to identify, investigate, and escalate security incidents. Performed security event analysis, incident tracking, and threat investigation using enterprise incident management platforms.

Monitored enterprise security events using ArcSight SIEM within a large-scale global retail environment. Investigated security alerts and supported incident detection, analysis, and response activities.

Managed the State Wide Area Network (SWAN) supporting statewide government connectivity. Configured, monitored, and maintained enterprise networking infrastructure, and performed network troubleshooting and preventive maintenance.

Installed, configured, and maintained desktop operating systems and end-user computing devices. Delivered hardware support, troubleshooting, and preventive maintenance services to ensure reliable IT operations.

Bachelor of Technology in Information Technology from Pondicherry Engineering College, Pondicherry University, completed in 2008.