Jan Löwenstrom
Software Engineer at DERMALOG Identification Systems GmbH
Hamburg, Germany
Summary
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Rockstar🎓
Top SchoolJan Löwenstrom is a software engineer based in Hamburg with 10 years of experience blending software engineering, data science, and deep learning to deliver practical, production-ready solutions. He has applied ML and computer vision in industry roles at DERMALOG, and developed deep reinforcement learning methods for vessel trajectory prediction during his thesis at DLR. Jan contributes to notable open-source projects like Apache Jena, improving core Java components and semantic web dataset handling, reflecting a strong backend and systems mindset. His background spans embedded and HMI work with Raspberry Pi and Python, C++ product engineering, and building DVC pipelines for large AIS datasets, showing versatility across the stack. He holds a Master’s in Digitalization, Innovation and Information Management and a Bachelor in Computer Science, both with top grades, and brings a habit of connecting research-grade ML with robust engineering practices. Colleagues value his ability to see the big picture while shipping well-documented, maintainable code.
10 years of coding experience
2 years of employment as a software developer
Master of Science - MS, Digitalisierung, Innovation und Informationsmanagement, 1,3, Master of Science - MS, Digitalisierung, Innovation und Informationsmanagement, 1,3 at Hochschule Bremerhaven
German, English
Stackoverflow
1,379reputation
58kreached
21answers
1question
css
top-5%
jquery-mobile
top-1%
html
top-5%
jquery
top-5%
Github Skills (20)
jena10
jquery-mobile10
java10
javas10
sparql10
jquery9
css9
html9
rdf9
exception-handling8
documentation7
data-structures6
apache-jena6
sql6
cdn6
Programming languages (13)
Github contributions (5)
apache/jena
Mar 2019 - Jan 2022
Apache Jena, A free and open source Java framework for building Semantic Web and Linked Data applications.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 14 PRs, 14 comments in 2 years 10 months
Contributions summary:Jan contributed to the Apache Jena project by modifying core Java code, including changes to the `Dyadic` class and improvements to query builder documentation. They also addressed a documentation issue related to Fuseki server port configuration, and added new constructors to DatatypeFormatException, improving exception handling. Furthermore, the user enabled named models with blank node names and introduced changes to DatasetImpl and Dataset interfaces.
apache-jenaapachesparqlrdfjava
fusion-jena/JaroWinklerSimilarity
Jul 2018 - Jun 2022
A Java implementation of the Jaro Winkler Similarity, which is optimized for the search of similar strings in a large set of strings.
Contributions:3 releases, 41 commits, 3 PRs in 3 years 11 months
string-matchingjarosimilarstringsjaro-winkler
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