Guido Appenzeller
Partner at Andreessen Horowitz
Menlo Park, California, United States
Summary
👤
Senior🎓
Top SchoolGuido Appenzeller is a seasoned technology leader, investor, and founder with over 16 years of experience building and scaling networking, cloud, and security products at the intersection of enterprise and hyperscale infrastructure. He co-founded and led startups (Big Switch Networks, Voltage Security) to acquisition, served as CTO for VMware Cloud & Networking and Intel’s Data Center & AI BU, and most recently invests in infrastructure and AI as a Partner at Andreessen Horowitz. A Ph.D. in Computer Science from Stanford and a former consulting professor there, he combines deep research credentials with hands-on product and engineering leadership. Guido has repeatedly taken technologies from lab to market—launching offerings like YubiKey-as-a-Service—and advised customers across cloud, telco, edge, and enterprise domains. Recognized by MIT TR100, the World Economic Forum, and SIGCOMM, he also participates as an angel investor, bringing founder empathy to his investing. Based in Menlo Park, he keeps a public GitHub as a personal sandbox for code and opinions separate from his corporate roles, reflecting a continued appetite for tinkering and technical curiosity.
16 years of coding experience
19 years of employment as a software developer
University of TokyoDiplom Physics, Diplom Physics at Karlsruhe Institute of Technology (KIT)Ph.D. Computer Science, Ph.D. Computer Science at Stanford University
English, German, French, Japanese
Github Skills (43)
minecraft10
python9
nodejs9
audio8
ffmpeg8
packaging8
interpreter8
javascript8
chatgpt8
obs7
resolver7
broadcast7
streaming7
selectable7
video-recording6
Programming languages (7)
Github contributions (5)
appenz/minebot
Aug 2021 - Sep 2022
A minecraft bot written in python that can mine, chop wood, farm and build things. Written in python using mineflayer.
Contributions:49 commits, 4 PRs, 46 pushes in 1 year
minecraftpythonbotpython-minecraftminecraft-bot
appenz/macLLM
Mar 2023 - Mar 2023
Tool to integrate LLM's like GPT-3 with macOS
Contributions:1 review, 9 commits, 9 PRs in 2 days
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