Mert Aydin

IT/OT Security

System Administration

L1/L2/L3 Support

IT/OT Security

System Administration

L1/L2/L3 Support

• • Preparation of the internal IT infrastructure for a GDPR audit

• • Implementation of a central password management system with Keeper Password Manager, including SSO integration and SCIM provisioning

• • Improvement of identity lifecycle management and access control processes

• • Contribution to the documentation of security controls and IT policies for audit preparation

• • Setup, maintenance, and administration of SIEM environments (Splunk, Microsoft Sentinel)

• • Development and optimization of detection rules (YARA Detection Use Cases) for capturing suspicious activities and attack patterns

• • Conducting Threat Hunting based on telemetry data, log files, endpoint events, and threat intel feeds

• • Analysis and correlation of security incidents from EDR, firewall, and cloud security incidents, including forensic data backup and reporting

• • Incident Response for security incidents from EDR, firewall, and cloud security solutions (e.g., Defender for Endpoint, CrowdStrike, Sophos, Azure Security Center)

• • Incident Response: Assessment, containment, and recovery after security incidents, including forensic data backup and reporting

• • Creation of KQL queries for threat analysis and visualization in "Microsoft Defender for Endpoint"

• • Collaboration with international Security Operations Teams (SOC), Threat Intel Analysts, and Blue Teams

• • Regular participation in War Room meetings for assessing critical incidents

• • Documentation of all security events in JIRA/ServiceNow

• • Development of PowerShell scripts for automating response tasks and log analysis

• • Creation of dashboards and reports for internal audits and management reviews