Chan Yoon
Lead Software Engineer at MITRE
Washington DC-Baltimore Area United States
Summary
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Rockstar🎓
Top SchoolChan Yoon is a Lead Software Engineer with six years of documented experience and a long history of technical leadership roles at MITRE and Perspecta, where he progressed from Principal Engineer to Systems Development Manager and now leads engineering efforts. He specializes in backend development and security-conscious engineering, with notable open-source contributions to MITRE’s well-regarded Caldera adversary emulation platform—fixing core functionality, improving payload handling, and tightening operation cleanup. Based in the Washington DC–Baltimore area, he combines advanced studies in computer science (KAIST) and information security (George Mason) to bridge research-grade security concepts with production systems. Colleagues rely on him for pragmatic solutions to tricky file-path, save-state, and payload-handling bugs that directly improve operational security and reliability. He brings a blend of hands-on coding, architectural thinking, and program-level coordination to deliver robust, auditable software for mission-critical environments.
6 years of coding experience
19 years of employment as a software developer
Master of Science - MS, Information Security and Assurance, Master of Science - MS, Information Security and Assurance at George Mason University - Volgenau School of EngineeringMaster of Science (MS), Computer Science, Master of Science (MS), Computer Science at Korea Advanced Institute of Science and Technology
Github Skills (11)
cybersecurity10
emulation10
python10
security-automation9
file-handling9
rest-api8
api-rest8
restful-api8
api-design8
regular-expression7
git5
Programming languages (5)
Github contributions (5)
mitre/caldera
Feb 2020 - Oct 2022
Automated Adversary Emulation Platform
Role in this project:
Back-end Developer
Back-end DeveloperContributions:36 reviews, 48 commits, 33 PRs in 2 years 8 months
Contributions summary:Chan primarily contributed to bug fixes and feature enhancements for the `mitre/caldera` repository. Their work included fixing issues related to saving sources, handling file paths, and managing abilities. They also re-added support for XOR payload downloads, and updated link management and operation cleanup procedures. These changes reflect improvements in the core functionality and security aspects of the adversary emulation platform.
security-automationadversarysecurity-testingred-teammitre-attack
mitre/debrief
Jun 2020 - Jan 2022
Debrief is a CALDERA plugin for gathering overall campaign information and analytics for a set of operations.
Contributions:12 reviews, 77 commits, 34 PRs in 1 year 7 months
caldera-plugingatheringanalyticscaldera
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