Doug Koster
Insider Risk Manager at American Express
Frederick, Maryland, United States
Summary
👤
Senior🎓
Top SchoolDoug Koster is an insider risk leader and former forensic analyst with over a decade of experience designing and automating insider threat triage and hunt processes at scale for Fortune 100 environments. He combines hands-on digital forensics and malware analysis expertise with practical scripting (Perl, Python, SQL) to turn investigative methods into repeatable, automated workflows that boost efficiency and institutional knowledge. At American Express he progressed from lead analyst to manager, shaping case assignment, risk flagging, and DLP policy integration across the enterprise. He holds an MS in Computer Science and an MBA, is EnCE/GCFA/GCFE/CISSP certified, and intentionally applies continuous process improvement to avoid stale investigative practices. A subtle differentiator: he focuses not just on tooling but on workforce development, ensuring teams evolve as threats and artifacts change.
10 years of coding experience
7 years of employment as a software developer
BS, Business, BS, Business at George Mason University - School of BusinessMS, Computer Science, MS, Computer Science at Hood College
Github Skills (8)
system-analysis9
parsing7
automation5
workflow-automation4
sift3
cli2
aws2
saltstack2
Programming languages (1)
Github contributions (4)
mantarayforensics/mantaray
Oct 2015 - Feb 2019
Contributions:38 commits, 36 pushes, 2 branches in 3 years 4 months
workflow-automationforensicsystem-analysisautomationtriage
mantarayforensics/1.4.2-dev
Oct 2015 - Oct 2015
Contributions:5 commits, 3 pushes, 1 branch in 3 days
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