Xerxes Rånby
Chief Executive Officer at ZAFENA ICT AB
Sweden
Summary
👤
SeniorXerxes Rånby is a seasoned CEO and hands-on lead developer with over 17 years building medical device interfaces, MCU/USB firmware, and compact ARM Linux systems that bridge patient devices to hospital and cloud records. As founder of Zafena he architects products like Simple Simon and the Zafena POC Workstation—open-source-backed personal health gateways that focus on workflow automation and self-monitoring across vendors. His low-level expertise spans MCU programming, USB hot‑swap handling, cross‑compilation for ARM architectures, and hospital network integrations, and he has contributed build and native-code fixes to the well-known JogAmp JOGL OpenGL project. Equally comfortable in management and deep technical work, he’s a frequent speaker at Free Software events and has a track record of delivering maintainable embedded platforms with full CPU/GPU access. An unexpected detail: alongside medical engineering he runs real-time video systems and booking platforms for a yoga studio, showing a practical knack for realtime media and user-facing services.
17 years of coding experience
4 years of employment as a software developer
Swedish, English, java, c, assembler, c++
Stackoverflow
11reputation
417reached
1answer
0questions
Github Skills (16)
arm10
javas10
cross-compiling10
java-native-interface10
native-code10
opengl10
crossbuild10
build-automation10
java10
ffmpeg9
platform-independent9
c119
opengl-es9
c179
pulseaudio6
Programming languages (10)
Github contributions (5)
sgothel/jogl
Feb 2012 - Dec 2019
Java™ Binding for the OpenGL® API
Role in this project:
Back-end Developer & Automation Engineer
Back-end Developer & Automation EngineerContributions:82 commits, 5 PRs, 2 comments in 7 years 10 months
Contributions summary:Xerxes primarily worked on build scripts and native code modifications for the Java OpenGL binding project. Their contributions include creating and updating scripts for cross-compilation to various ARM-based Linux platforms, including support for ARMv6/ARMv7 and AArch64 architectures. The user also addressed issues with the underlying libraries, such as FFMPEG, and the audio sink implementations. Furthermore, the user introduced a mechanism to handle USB device hot-swapping within the Linux Event Device Tracker.
apiopengl-apiplatform-independentopengl-esopengl3
xranby/rpi-buildroot
Oct 2014 - Feb 2017
Contributions:36 commits, 4 pushes, 2 branches in 2 years 3 months
raspberry-piraspberrybuildrootraspberrypidistribution
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