Maximilian Hils
Security Engineer Cloud Product Security at mitmproxy
Zurich, Zurich, Switzerland
Summary
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Rockstar🎓
Top SchoolMaximilian Hils is a Security Engineer specializing in cloud product security at Google with 14 years of hands-on experience across networking, TLS, and open source. He leads the widely used mitmproxy project—maintained for over a decade and relied on by 500k+ users—where he designed a sans-io proxy core and implemented complex HTTP/QUIC/TLS features. Comfortable from low-level protocol debugging to product and team management, he blends deep cryptography and TLS contributions (pyOpenSSL, cryptography) with pragmatic engineering that improves reliability and observability. An experienced educator and mentor, he has taught network security at UC Berkeley, run CTFs, and guided students through Google Summer of Code and Honeynet Project initiatives. Based in Zurich, he pairs academic rigor (PhD-level research) with prolific open-source impact and a particular knack for making security tooling both robust and user-friendly.
14 years of coding experience
9 years of employment as a software developer
Master of Science - MS, Information Systems, Master of Science - MS, Information Systems at Westfälische Wilhelms-Universität MünsterDoctor of Philosophy - PhD, Computer Science, Doctor of Philosophy - PhD, Computer Science at Leopold-Franzens Universität Innsbruck
Stackoverflow
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Github Skills (55)
markdown10
compatible10
ssl10
tls1210
restructuredtext10
multiplatform10
python10
apidoc10
testing10
it-security10
http10
websocket10
cross-platform10
document-generation10
tls1310
Programming languages (22)
Github contributions (5)
mitmproxy/mitmproxy
Jun 2012 - Jan 2023
An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:29 releases, 797 reviews, 3849 commits in 10 years 9 months
Contributions summary:Maximilian's commits primarily focused on enhancing the mitmproxy tools, including improvements to the HTTP/2 implementation, handling of WebSocket messages, and modifications to the proxyauth addon. They addressed code quality by refactoring and optimizing existing code. The user added support for the raw hex stream content view, enhanced error handling, and fixed multiple minor bugs across the project, contributing to the tool's overall stability and functionality.
http-headerpythonsslproxyja3
mitmproxy/pdoc
Jun 2018 - Jan 2023
API Documentation for Python Projects
Role in this project:Back-end Developer & API Developer
Back-end Developer & API DeveloperContributions:67 reviews, 554 commits, 400 PRs in 4 years 8 months
Contributions summary:Maximilian contributed to the API documentation project, mitmproxy/pdoc, by implementing features related to accurate documentation generation. Their work focused on enhancing the tool's ability to identify and display classmethods, automatically document variables with docstrings, and correct the generation of links. The contributions included fixing bugs, improving type annotation handling, and ensuring the display of source code for better user experience.
apipythondocstringdocstringspdoc
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