Michal Zalewski
Vulnerability Logo Designer at Calif
Mountain View, California, United States
Summary
👤
Senior🎓
Top SchoolMichal Zalewski is a seasoned security leader with over two decades of experience designing and running enterprise security, privacy, and platform-safety programs for top-tier tech companies. He led Google’s Information Security Engineering to harden one of the largest codebases in the world and later scaled Snap’s security organization to roughly 220 engineers as VP of Infosec Engineering and CISO. A distinguished security researcher and author, he created influential fuzzing tools (e.g., American Fuzzy Lop) and wrote widely translated books on security, then shifted to pragmatic risk guidance in his 2022 book Practical Doomsday. Michal blends deep offensive research experience—having discovered and helped remediate hundreds of high-impact vulnerabilities—with large-scale defensive engineering and program leadership. Based in Mountain View, he favors engineering-first, developer-friendly defenses and has repeatedly built tooling and processes that prevent vulnerabilities before they reach production. Less obvious: he has moved comfortably between hands-on vulnerability research and executive stewardship, intentionally stepping back from executive intensity to mentor successors and focus on practical personal priorities.
14 years of coding experience
11 years of employment as a software developer
Midvale School for the Gifted
Polish, English
Github Skills (15)
mercurial8
bit7
mozilla-firefox7
git6
firefox6
mojolicious6
parsing5
git-mirror5
c995
homebrew5
mozilla4
perl4
html4
git-clone1
cli1
Programming languages (4)
Github contributions (5)
syscase/syscase
Oct 2014 - Nov 2017
Contributions:212 commits in 3 years 1 month
lcamtuf/AC
Apr 2017 - Apr 2017
Contributions:2 pushes, 1 branch in 1 day
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