Karthikeyan Senthilkumar

Conducted IAM security reviews for 30+ Active Directory accounts, identifying excessive privileges and improving access control hygiene. Performed SOC-level alert triage by analyzing authentication and system events using Wazuh SIEM, identifying suspicious activity and supporting incident investigation. Investigated misconfigurations across multiple Linux and Windows virtual machines, documenting findings and escalating security issues according to SOC procedures.

Deployed and operated a SOC laboratory using Wazuh SIEM to monitor Windows and Linux systems, including detection rule configuration and security event analysis. Simulated realistic attack scenarios (brute force, phishing, reverse shell) and produced incident reports and documentation aligned with SOC processes. Developed and supported internal applications in a Linux environment, handling technical ticket management (diagnosis and Level 1 resolution).