Jeff Williams
Founder And CTO at Contrast Security
Baltimore, Maryland, United States
Summary
👤
Senior🎓
Top SchoolJeff Williams is a veteran security entrepreneur and technologist with more than 25 years of experience building the foundations of modern application security. As founder and CTO of Contrast Security and previously founder/CEO of Aspect Security, he pioneered runtime instrumentation techniques (patented) that power developer-friendly IAST, RASP, SAST, SCA and serverless protections at DevOps speed. He also founded the OWASP Foundation, authored seminal open-source projects like the OWASP Top Ten, WebGoat, ESAPI and ASVS, and grew OWASP into a global nonprofit with hundreds of chapters. Jeff combines deep technical R&D—dating back to high-assurance systems for the Navy and teaching at the NSA—with product-driven leadership that has repeatedly turned security research into widely adopted commercial and community tools. Based in Baltimore, he pairs legal training in IP and cyberlaw with hands-on engineering, a blend that helps him navigate technical, regulatory, and market challenges.
11 years of coding experience
24 years of employment as a software developer
JD cum laude Intellectual Property and Cyberlaw, JD cum laude Intellectual Property and Cyberlaw at Georgetown University Law CenterMA Human Factors, MA Human Factors at George Mason UniversityBA Psychology and Computer Science, BA Psychology and Computer Science at University of Virginia
Github Skills (72)
benchmark10
web-application10
web-application-security10
csrf10
security10
specification10
runnable10
tomcat10
verify10
owasp10
api10
vex10
esapi10
java10
application-security10
Programming languages (9)
Github contributions (5)
rugged-software/rugged-software.github.io
Aug 2018 - Sep 2018
Are you rugged?
Contributions:63 commits, 1 PR, 53 pushes in 14 days
ruby
planetlevel/spring-petclinic
Dec 2018 - Feb 2025
Spring PetClinic modified to include vulnerabilities for the purpose of demonstrating the power of IAST and RASP.
Contributions:8 PRs, 53 pushes, 11 branches in 6 years 3 months
vulnerabilitiessecurityiastmodifiedpurpose
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