Jörg-m Sautter
Professor Of Applied Mathematics And Numerical Simulation
Aschaffenburg, Bavaria, Germany
Summary
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RockstarJörg-m Sautter is a Professor of Applied Mathematics and Numerical Simulation with over a decade of experience bridging academic research and production-grade backend engineering from Aschaffenburg, Germany. He combines deep numerical expertise with pragmatic software optimization, demonstrated by performance-focused contributions to high-profile open-source projects like Selenium and JNA where he accelerated JSON processing, fixed streaming/WebSocket issues, and reduced memory overhead. His work on openHAB add-ons showed the same attention to robustness and data accuracy, improving persistence, Bluetooth bindings, and interpolation logic. Equally comfortable in research and engineering contexts, he excels at turning mathematical insight into efficient, maintainable code that improves stability for large-scale and embedded systems.
10 years of coding experience
Github Skills (19)
json10
selenium10
memory-management10
openhab10
bluetooth-le10
selenium-ide10
data-structure10
java10
javas10
persistence10
performance-optimization10
bluetooth10
data-structures10
netty9
dbus9
Programming languages (12)
Github contributions (5)
SeleniumHQ/selenium
Jul 2020 - Dec 2022
A browser automation framework and ecosystem.
Role in this project:
Backend Developer
Backend DeveloperContributions:65 reviews, 14 commits, 101 PRs in 2 years 4 months
Contributions summary:Jörg-m primarily contributed to improving the performance and efficiency of JSON processing within the Selenium framework. Their work involved optimizing both the parsing and writing of JSON data in Java, leading to significant speed improvements, especially for handling large data inputs like screenshots. Additionally, the user addressed issues related to data streaming and WebSocket communication, specifically within the context of the Grid and browser automation, enhancing the overall reliability and stability of the framework. The user also contributed code fixes regarding base64 decoding and handling of the connection header.
dotnetpythonbrowserjavascriptruby
openhab/openhab-addons
Dec 2022 - Feb 2025
Add-ons for openHAB
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 reviews, 14 PRs, 17 comments in 2 years 2 months
Contributions summary:Jörg Sautter primarily contributed to the `openhab-addons` repository, focusing on persistence and Bluetooth binding improvements. His work included enhancing the RRD4j persistence service by optimizing data structures, implementing the `HistoricItem.getInstant` method, and refining interpolation. He also addressed issues within the Bluetooth BlueZ and Astro bindings, and fixed the Bluetooth Radoneye binding for both hardware versions.
add-onsopenhabaddonjavaons
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