Stefan K
Geschäftsführender Gesellschafter at Spacehuhn Technologies
Bingen am Rhein, Rhineland-Palatinate, Germany
Summary
🤩
Rockstar🎓
Top SchoolStefan K is a Germany-based entrepreneur and technical lead with nine years of experience building embedded IoT firmware and user-focused web interfaces. As Geschäftsführer at Spacehuhn Technologies since 2020, he combines hands-on embedded development for ESP8266/ATmega platforms with full‑stack UI improvements that make complex security tooling more accessible. His open-source contributions include notable work on WiFiDuck and the esp8266_deauther projects, where he implemented firmware features, storage upgrades, and polished web UIs and keyboard layouts. Comfortable moving between Arduino-level firmware and front-end JavaScript/HTML/CSS, he emphasizes practical, user-centric solutions for hardware hacking and testing. A TH Bingen computer science graduate, he brings an uncommon blend of product ownership and low-level technical craftsmanship to security-focused IoT projects.
9 years of coding experience
Informationstechnischer Assistent, Informationstechnischer Assistent at Berufskolleg für Medienberufe KölnBachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at TH Bingen
Github Skills (16)
html10
webui10
css10
spiffs10
iot10
keyboard-layout10
embedded10
javascript10
c-language10
user-interface10
web-development10
cprogramming-language10
sys10
arduino10
esp826610
Programming languages (9)
Github contributions (5)
SpacehuhnTech/WiFiDuck
May 2020 - Jun 2022
Wireless keystroke injection attack platform
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:2 releases, 50 commits, 16 PRs in 2 years
Contributions summary:Stefan primarily focused on enhancing the project's user interface and expanding its functionality. Their contributions included fixing issues with the locale, renaming storage related variables, and updating the web interface to accommodate new settings. Moreover, the user updated the license and made improvements to multiple keyboard layouts. They also updated the documentation for all the newly added layouts.
wirelessesp8266arduinohid
spacehuhn/wifi_ducky
Mar 2017 - May 2021
Upload, save and run keystroke injection payloads with an ESP8266 + ATMEGA32U4
Role in this project:Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:2 releases, 47 commits, 5 PRs in 4 years 2 months
Contributions summary:Stefan focused on developing and modifying firmware for an ESP8266-based device designed for keystroke injection. Their contributions included implementing file upload functionality to the device's web interface, enabling the storage and execution of scripts. They also refactored the project by renaming files and directories to better reflect the project's purpose as a "WiFi Duck" type device. They also included and edited HTML/CSS files for the UI of the device.
esp8266arduinoatmega32u4duckykeytroke
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