Fabian Yamaguchi

Co-Founder

Cape Town, Western Cape, South Africa20 yrs experience
Highly Stable

Key Highlights

  • Over 20 years of experience in cyber security.
  • Inventor of the code property graph.
  • Presented findings at major industry and academic conferences.
Stackforce AI infers this person is a Cyber Security Expert with a focus on vulnerability discovery and automated analysis.

Contact

Skills

Other Skills

GitMachine LearningProgram analysisSecurityVulnerability Discovery

About

Prof. Dr. Fabian Yamaguchi is co-founder and CTO of Whirly Labs, Adjunct Professor for Computer Security at Stellenbosch University, and Chief Scientist Emeritus at Qwiet.ai (formerly ShiftLeft Inc.). He is a seasoned expert in cyber security with over 20 years of experience, both as an individual contributor and in leadership roles. Most recently, he was a founding team member of ShiftLeft Inc where he built and led the R&D team that designed and implemented the technology for automated vulnerability discovery at the heart of the product offering - based on his 2015 award-winning PhD thesis "Pattern-Based Vulnerability Discovery". Throughout his career, he has identified previously unknown vulnerabilities in widely used software such as Microsoft Windows and Linux kernels, the Squid proxy server, and the VLC media player. He has presented his findings and techniques at both major industry conferences such as BlackHat USA, DefCon, First, and CCC, and renowned academic security conferences such as ACSAC, IEEE Security and Privacy, and CCS. He is the inventor of the code property graph and lead developer of the open-source code analysis platform Joern. Fabian holds a PhD in computer science from the University of Goettingen and a master's degree in computer engineering from Technical University Berlin.

Experience

Harness

Principal Code Security Scientist

Oct 2025Present · 5 mos

Privado.ai

Advisor

Sep 2023Jun 2024 · 9 mos

Qwiet ai

2 roles

Chief Scientist Emeritus

Aug 2023Sep 2025 · 2 yrs 1 mo

Chief Scientist

Oct 2016Aug 2023 · 6 yrs 10 mos

Whirly labs (pty) ltd

CTO/Founder

Aug 2023Present · 2 yrs 7 mos · Cape Town, Western Cape, South Africa · On-site

Relio

Advisor

Apr 2023Jun 2024 · 1 yr 2 mos

Stellenbosch university

Associate Professor Extraordinary

Jun 2021Present · 4 yrs 9 mos

Technische universität braunschweig

Postdoc

Apr 2016Dec 2016 · 8 mos · Braunschweig und Umgebung, Deutschland

Georg-august-universität göttingen

2 roles

Postdoc

Nov 2015Apr 2016 · 5 mos

Researcher

Feb 2012Oct 2015 · 3 yrs 8 mos

Recurity labs gmbh

Vulnerability Researcher, Security Consultant

Jan 2006Dec 2011 · 5 yrs 11 mos · Berlin und Umgebung, Deutschland

Education

The University of Göttingen

Doktor (Ph.D.) — Informatik

Jan 2012Jan 2015

Technische Universität Berlin

Diplom-Ingenieurin (Dipl.Ing.) — Computer Engineering (Technische Informatik)

Jan 2005Jan 2011

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