Nathaniel Hartley
Member Of Technical Staff at OpenAI
Cheltenham, England, United Kingdom
Summary
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Rockstar🎓
Top SchoolNathaniel Hartley is a seasoned security researcher and Member of Technical Staff with eight years of industry experience and a deep background in intrusion analysis and malware research. He has progressed from UK Government intrusion analyst roles to leadership and principal researcher positions at CrowdStrike, brief stints at Apple as a threat intelligence analyst, and now works at OpenAI, blending operational threat hunting with strategic security research. Nathaniel is skilled at translating adversary tactics into actionable detection and mitigation, having led targeted intrusion teams and authored technical investigations for high-profile incidents. He balances hands-on reverse engineering and incident response with managing teams and shaping intel-driven security programs. A computer science graduate from the University of Warwick, he took a deliberate career break in 2024 to recharge and refocus, suggesting a thoughtful approach to career sustainability. Based in Cheltenham, he brings rare cross-sector perspective—from government to top-tier private security—to hard problems at the intersection of applied research and defensive engineering.
8 years of coding experience
14 years of employment as a software developer
Bachelor's Degree Computer Science, Bachelor's Degree Computer Science at University of Warwick
Github Skills (55)
matching10
plugin10
war10
external10
hex9
pattern9
knife9
pattern-matching9
parser9
code-navigation9
parse9
yara9
lalr8
chat8
grammar8
Programming languages (5)
Github contributions (5)
ostracon/will
Mar 2018 - Dec 2022
Contributions:2 pushes in 4 years 9 months
hipchatlotbotslack-botslack
ostracon/HexRaysCodeXplorer
May 2020 - Jan 2022
Hex-Rays Decompiler plugin for better code navigation
Contributions:3 pushes, 1 branch in 1 year 8 months
decompileraemdmnavigationhex
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