Fabian Yamaguchi
CTO Founder at Whirly Labs (Pty) Ltd
Western Cape, South Africa
Summary
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Rockstar🎓
Top SchoolFabian Yamaguchi is a cybersecurity researcher-turned-founder and CTO with over a decade of hands-on experience translating cutting-edge academic research into production security products. He co-founded Whirly Labs and was a founding R&D lead at ShiftLeft/Qwiet.ai, where he operationalized his award-winning PhD work on pattern-based vulnerability discovery into automated analysis used in industry. Inventor of the code property graph and lead developer of the Joern analysis platform, he has discovered impactful zero-days in widely used software and spoken at both BlackHat/DefCon and top academic venues. As an adjunct professor at Stellenbosch and former chief scientist, he bridges rigorous research, open-source tooling, and product engineering, often favoring principled, pattern-driven approaches over ad hoc fuzzing. Based in the Western Cape, he combines deep systems-level insight with startup pragmatism, mentoring teams to turn vulnerability research into scalable security features.
11 years of coding experience
19 years of employment as a software developer
Diplom-Ingenieurin (Dipl.Ing.) Computer Engineering (Technische Informatik), Diplom-Ingenieurin (Dipl.Ing.) Computer Engineering (Technische Informatik) at Technische Universität BerlinDoktor (Ph.D.) Informatik, Doktor (Ph.D.) Informatik at The University of Göttingen
Github Skills (109)
parser10
dataflow10
python10
security10
code-analysis10
specification10
cpp10
javascript10
ghidra10
static-analysis10
unix10
property-graph10
sarif10
validation10
llvm10
Programming languages (9)
Github contributions (5)
ShiftLeftSecurity/fuzzyc2cpg
Jul 2018 - Sep 2020
A fuzzy parser for C/C++ that creates semantic code property graphs
Contributions:5 reviews, 311 commits, 133 PRs in 2 years 2 months
fuzzygraphssemantic-codeparsersemantic
ShiftLeftSecurity/joern-sample-extension
May 2020 - Oct 2020
A sample of a standalone extension for Joern/Ocular
Contributions:1 review, 21 commits, 3 PRs in 5 months
javastandalone
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