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Key Leutchit
Summary: Vulnerability Researcher & Computer Scientist with deep expertise in hyperscale infrastructure, Linux internals, and physical layer security. Proven track record of identifying critical logic flaws in enterprise automation and performing deep-dive root cause analysis on complex systems. Leveraging 5+ years of experience at Amazon Web Services (AWS) to transition into vulnerability discovery, exploit analysis, and security engineering.
Technical Skills
Root Cause Analysis
Python
Bash
Linux Internals
TCP/IP
Threat Modeling
AWS (EC2/S3)
Wireshark
C/C++
Experience
Amazon Web Services (AWS) - Team Lead (L4)
- Directing incident response for 10+ hyperscale facilities, analyzing security incidents to determine root cause.
- Leading technical post-mortems (COE) for high-severity events, identifying operational logic gaps.
- Developed curriculum on "Deep Dive Troubleshooting" to enhance team analytical capabilities.
Amazon Web Services (AWS) - Data Technician (L4)
- Vulnerability Discovery: Independently identified a critical logic flaw in automation workflows. Reverse-engineered the failure logic and implemented a fix impacting 800+ hosts.
- Hardened network edge devices (Cisco/Juniper) ensuring compliance with AWS security standards.
- Served as primary on-call responder for complex firmware and OS-level failures using CLI tools.
Amazon Web Services (AWS) - Data Technician (L3)
- Analyzed system logs (syslog, dmesg) to isolate failures in EC2 hardware.
- Troubleshot complex Layer 1-3 connectivity issues involving WDM optics.
Education
George Mason University
Relevant Coursework: Analysis of Algorithms, Data Structures, Operating Systems, Network Security.
Certifications & Projects
- CompTIA Security+: Exam Scheduled Dec 2025
- Home Lab: Active development of local pentesting lab using Kali Linux and Wireshark.