Monitored and analyzed 250+ daily security events using IBM QRadar, responded to high-priority threats with SentinelOne and CrowdStrike XDR, and investigated phishing emails with Proofpoint to mitigate risks and prevent attacks. Conducted real-time log analysis and PCAP investigations using Wireshark, identified Indicators of Compromise (IOCs), and remediated threats to enhance security posture. Performed malware sandboxing and domain validation using VirusTotal, AnyRun, and MX Toolbox, validating threats and preventing system compromise. Executed vulnerability scans with Tenable.io/Nessus, proactively identifying and remediating critical security gaps. Conducted attack simulations in Kali Linux & Metasploit, strengthening endpoint defenses. Monitored and analyzed security alerts using a range of tools such as IDS, IPS, firewalls, and SIEMS, providing comprehensive visibility into potential threats.