Julian Feinauer
Geschäftsführer at Industrial Open Source
Kirchheim unter Teck, Baden-Württemberg, Germany
Summary
🤩
Rockstar🎓
Top SchoolJulian Feinauer is a pragmatic technology leader and entrepreneur with a decade of hands-on software engineering experience and current CEO roles at pragmatic industries GmbH and pragmatic minds GmbH. He combines academic rigor—holding advanced mathematics credentials from Ulm and Stuttgart—with practical backend Java expertise demonstrated through contributions to notable open-source projects like Eclipse Ditto and Apache IoTDB. Julian’s work on digital twin frameworks and IoT storage internals highlights a focus on robust metadata handling, automatic file repair, and making tests and integrations more reliable. He also shares his knowledge as a lecturer at Hochschule Heilbronn and coordinates community efforts at Industrial Open Source, bridging industry and education. Colleagues value his pragmatic approach to shipping resilient systems and his willingness to dive into low-level bugs and test refactors. Based in Kirchheim unter Teck, he pairs entrepreneurial leadership with continual contribution to widely used IoT open-source infrastructures.
10 years of coding experience
Dr. rer. nat. Mathematik, Dr. rer. nat. Mathematik at Ulm UniversityDiplom Mathematik, Diplom Mathematik at University of Stuttgart
German, English, French
Stackoverflow
438reputation
19kreached
15answers
8questions
Github Skills (17)
time-series10
java10
javas10
iot10
nosql9
databases9
database9
big-data8
json8
testing8
iotdb6
macos6
apache-iotdb6
spring-boot6
tcp6
Programming languages (9)
Github contributions (5)
apache/iotdb
Feb 2019 - Oct 2021
Apache IoTDB
Role in this project:
Backend Developer
Backend DeveloperContributions:7 reviews, 76 commits, 32 PRs in 2 years 7 months
Contributions summary:Julian primarily contributed to the `TsFileSequenceReader` class within the `tsfile` module, adding functionality for automatic file repair. They refactored code and fixed a bug related to the `CompressionRatioTest`. Additionally, the user addressed issues in tests, making them locale-invariant and fixed a query issue in the IoTDB-Grafana integration. Their work primarily involves Java-based backend development and test improvements.
tdenginenosqlapachebig-datadatabase
eclipse-ditto/ditto
Jan 2020 - Sep 2020
Eclipse Ditto™: Digital Twin framework of Eclipse IoT - main repository
Role in this project:Back-end Developer
Back-end DeveloperContributions:4 reviews, 18 commits, 4 PRs in 8 months
Contributions summary:Julian primarily contributed to the back-end logic of the Eclipse Ditto framework, specifically focusing on the "things" model and metadata handling. Their work involved fixing errors, refactoring tests, and adding features like metadata parsing from headers. They demonstrated proficiency in Java by modifying code related to HTTP publishing, connection validation, and the creation of metadata objects, enhancing the framework's functionality.
eclipseioteclipsemongodbweb-of-thingseclipse-iot
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