JF

0x00Based in Germany

Security software engineerwith design experience.

Jan Fedler

I build security tooling and shape the interfaces that make it usable. Two disciplines, one practice.

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Security Engineering · VM Introspection · Hypervisor · Reverse Engineering · C/C++ · Rust · IoT · Linux · Docker · Docker Compose · GitHub Actions · Agile Development · React.js · UI/UX Design · TypeScript · Tailwind CSS · HTML5 · Node.js · Security Engineering · VM Introspection · Hypervisor · Reverse Engineering · C/C++ · Rust · IoT · Linux · Docker · Docker Compose · GitHub Actions · Agile Development · React.js · UI/UX Design · TypeScript · Tailwind CSS · HTML5 · Node.js ·

0x01About

Two disciplines

Where security
meets design.

I build the tooling, then design how people use it.

Security Design
Hypervisor
VM Introspection
Reverse Engineering
Security Engineering
C/C++
Rust
IoT
UI/UX Design
React.js
TypeScript
Tailwind CSS
HTML5
Node.js
Usable security
Tooling & practice
Linux Docker Docker Compose GitHub Actions Agile Development AI-Accelerated Development

0x02Projects

Selected work
1 / 1
/01 Supply chain security · 2026

Crateward

Watches crates.io, analyzes every new version statically, builds the risky ones in offline Firecracker microVMs with eBPF tracing and honeytokens, and scores each with reasons that link to the evidence. Every version also gets a CycloneDX SBOM after BSI TR-03183-2, with the findings as VEX.

Stack
RustFirecrackereBPFYARA-XPostgresCycloneDXClaude Code
Proof

Live on every new crates.io version, with over 150,000 analyzed so far. It caught the malicious crate monica_rand_core and published the finding. Each sandbox resets to a clean snapshot in about 65 ms.

Website Source
More on GitHub

0x03Research

Bachelor thesis
Publication

Hardening Nucleus Against Padding Manipulation Attacks

Read the paper
JF

0x04Contact

Let's talk.

/01 LinkedIn /02 GitHub /03 Rustfinity /04 Hack The Box
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