Dr. Markus Zoppelt speaking on stage

Hi, I’m Markus

Software Engineer • Security Professional • Speaker

About Me

Projects

cifuzz

A CLI tool to seamlessly integrate fuzz testing into your development workflow.

stickr.shop

The renegade, CLI-only sticker shop! Visit via: ssh stickr.shop

portfolio_rs

Rust-based CLI for managing and analyzing investment portfolios.

yubikey-otp

Fuzzy search tool for TOTP (OATH) secrets on your YubiKey, with quick clipboard copy.

Hexagon Hamlet

A collaborative city-builder game for iOS developed with Unity.

SAM

Security Abstraction Model for the EAST-ADL architecture, simplifying security analysis.

Fuzzing Highlights

  • Developed cifuzz (repo), an AI-powered CLI for automated fuzz testing.
  • Leveraged LLMs with Tree-of-Thoughts for high-quality test generation.
  • Built remote fuzzing service APIs and integrations.
  • Enabled libFuzzer support for C/C++, Jazzer for JVM, and Jazzer.js for JavaScript.
  • Integrated fuzzing into common build systems (Bazel, CMake, Maven, Gradle, Node.js).

Skills & Tools

Go Rust C/C++ Fuzzing Cryptography Nix/NixOS Python JavaScript Docker AWS Linux CI/CD

Contact

Feel free to reach out via email or connect on social platforms.

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