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Szymon Wilczek

Systems programmer. Mostly C, mostly Linux.

Szymon Wilczek

About

The degree is almost done. It taught me a lot, but still less than a few weeks of reading the kernel source did.
I care about how things actually work - what the bytes do, where the memory goes, why the lock is there. Most of what I do is reading other people's code, figuring out why it falls over, and making it fall over less.

Technologies I Mostly Work With

CGoLuaTypeScriptJavaScriptRust

Journey

2025

Linux Kernel

Searching for and fixing bugs in mainline - UAF, Out-of-bounds reads, races across filesystems and some drivers.

2025

Software Architect @ FAMUR

Backend-heavy web apps for the mining industry. PHP, legacy data, not glamorous. The kind of system nobody notices until it loses a row - so it doesn't.

2023

Computer Science Student

Currently in the 6th semester at Silesian University of Technology. Focusing on software engineering principles and their application in modern development.

2022

Freelance Full-stack Developer

Built apps for whoever was paying. Learned that "done" means it works on the client's machine, not mine.

2017

First Lines of Code

Wrote my first code. Most of it didn't compile. Kept going anyway - turns out that's the whole job.

2005

Hello World

Born in Poland - PID: 1.

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