Tobias Fischer
Senior Software Developer at Goldflam GmbH
Tübingen, Baden-Württemberg, Germany
Summary
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RockstarTobias Fischer is a Senior Software Developer with 15 years of experience, currently building reliable systems at Goldflam GmbH from his base in Tübingen, Germany. He brings strong backend expertise and a pragmatic full‑stack sensibility evidenced by contributions to tooling like EPUBCheck and a Redmine–GitHub integration plugin that improved update targeting and performance monitoring. Tobias has deep hands‑on experience with cross‑platform tooling—adding macOS Java launcher improvements and Java version detection logic—showing attention to compatibility across legacy and modern runtimes. He pairs bug fixes and test automation with performance-minded instrumentation, favoring observable, maintainable solutions. Colleagues can count on him to bridge production stability and developer ergonomics while quietly improving developer workflows through thoughtful open‑source work.
15 years of coding experience
Github Skills (18)
epub10
testing10
bash10
java10
ruby10
javas10
redmine10
test-automation10
xml9
logging8
appleii8
oracle8
apple28
git8
apple18
Programming languages (21)
Github contributions (5)
tofi86/universalJavaApplicationStub
Mar 2014 - Nov 2021
universalJavaApplicationStub - an alternative Application launcher script for Java based macOS Apps that works with both Apple's and Oracle's PList format and supports the old Apple Java 6 as well as all the latest Oracle/OpenJDK/Adopt/Corretto JRE's/JDK's. Plus it supports drag&drop to the Dock icon 🎉
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:30 releases, 2 reviews, 223 commits in 7 years 9 months
Contributions summary:Tobias contributed to a Java-based macOS application launcher by implementing a Java JRE version tester using bash scripts. They focused on improving the algorithm for searching for a specific Java version and added experimental support for Java 9. The user also refactored the test scripts, including changes to function arguments and overall code structure. The contributions included solving merge conflicts and updating the Java version tester to work with the latest Java versions.
dockjava-appsjreiconjdk
w3c/epubcheck
Mar 2013 - Apr 2019
The conformance checker for EPUB publications
Role in this project:Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:165 commits, 99 PRs, 137 pushes in 6 years 1 month
Contributions summary:Tobias primarily contributed to improving the functionality and reliability of the EPUBCheck tool. They fixed identified issues, specifically addressing bugs related to file handling, XML parsing, and URL validation. Furthermore, the user added and modified test cases, indicating a focus on ensuring the tool's accuracy and conformance to EPUB specifications. These changes involved modifications to Java code across various files and the addition of new test resources.
publishingpdfepub-publicationscheckerconformance
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