David N.

Key Skills

Freelancer Overview

DAVID NGUYEN|248-658-8363|[email protected]|github.com/davidn-works|https://www.linkedin.com/in/david-n-1a45762a5 __________________________________________________________________________________________________ EXPERIENCE Company: Log(N) Pacific 2/1/2025 - Present Title: Cyber Security Support Engineer (Vulnerability Management & SecOps) Vulnerability Management: ● Conducted vulnerability scans, provided detailed reports, and implemented PowerShell-based remediations, contributing to a 100% reduction in critical, 90% in high, and 76% in medium vulnerabilities for the server team. ● Performed vulnerability assessments and risk prioritization using Tenable across Windows and Linux environments. ● Executed secure configurations and compliance audits (DISA STIG) with Tenable to meet industry standards. ● Automated remediation processes and STIG implementations using PowerShell to address critical vulnerabilities. ● Deep understanding of the “soft” side of Vulnerability Management: rapport, trust, transparency, and business need. Security Operations: ● Performed threat hunting with EDR, detecting IoCs from brute force attacks, data exfiltration, and ransomware. ● Designed, tested, and published advanced threat hunting scenarios for incident response tabletop exercises ● Developed custom detection rules in Microsoft Defender for Endpoint to automate isolation and investigation of compromised systems. ● Reduced brute force incidents by 100% by implementing inbound NSG/firewall