JP (Joshua Jun)

they/them

Building firmware, tools, and weird watch stuff

I'm a freelance firmware engineer and SDK developer based in Germany. Currently contracting for Core Devices, where I contribute to the open-source PebbleOS revival, working on firmware features, SDK tooling, and QEMU emulator support.

I study Computer Engineering at TH Köln and spend most of my free time building things, whether that's writing firmware, designing PCBs, contributing to open-source projects, or 3D printing parts for whatever I'm tinkering with this week.

Interests

Embedded Systems
C
SDK Tooling
QEMU
Open Source
Self-Hosted Infra
3D Printing
PCB Design

Elsewhere

See what I've been building on the projects page, or find me around the internet on links.