Mathieu Bastian
Principal AI Engineer at GetYourGuide
Prague, Czechia
Summary
🤩
Rockstar🎓
Top SchoolMathieu Bastian is a Principal AI Engineer and seasoned technology leader with 17+ years building high-impact ML and data products across startups and large platforms. A co-founder and long-time technical lead of Gephi—the widely used open-source graph visualization platform downloaded millions of times—he blends deep expertise in graph analytics, information retrieval and scalable data engineering. At GetYourGuide he moved from building and scaling a 25+ person ML organization to shipping LLM-based agents and driving company-wide GenAI adoption and LLMOps practices. Earlier at LinkedIn he delivered core relevancy and skills-inference systems that materially increased engagement and powered major product features. Mathieu combines hands-on systems work (from Java storage engines to OpenGL rendering) with executive-level strategy and a track record of creating durable engineering foundations. Based in Prague, he is as comfortable mentoring open-source contributors as advising leadership on AI strategy.
17 years of coding experience
16 years of employment as a software developer
Master of Science - MS, Computer Science, Master of Science - MS, Computer Science at University of TwenteMaster of Science - MS, Computer Science, Master of Science - MS, Computer Science at Université de Technologie de CompiègneBachelor of Science - BS, Mathematics and Computer Science, Bachelor of Science - BS, Mathematics and Computer Science at University of Strasbourg
Stackoverflow
36reputation
217reached
1answer
0questions
Github Skills (16)
javas10
rocksdb10
data-serialization10
visualization10
key-value-store10
visualizations10
java10
serialization10
graph-datastructures9
graph-database9
graph9
testing8
performance-optimization8
jython6
gephi6
Programming languages (9)
Github contributions (5)
linkedin/PalDB
Oct 2015 - Jun 2016
An embeddable write-once key-value store written in Java
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 releases, 30 commits, 6 PRs in 8 months
Contributions summary:Mathieu contributed to the `paldb` repository, an embeddable key-value store written in Java. Their work involved implementing new features such as `StoreReader.keys()` and fixing several issues, including serialization problems and incorrect format versioning. They also updated benchmark code related to RocksDB, indicating a focus on performance and storage efficiency. These contributions suggest a developer working on the core functionality and optimization of the key-value store.
javakey-value-store
gephi/gephi
Nov 2011 - Jan 2023
Gephi - The Open Graph Viz Platform
Role in this project:Back-end Developer
Back-end DeveloperContributions:18 releases, 29 reviews, 2528 commits in 11 years 4 months
Contributions summary:Mathieu primarily worked on implementing features and fixing issues related to text positioning and display within the Gephi visualization module. Their contributions involved modifications to the `TextManager.java`, `NodeModel.java` and `EdgeModel.java` files. Specifically, these commits addressed text rendering issues by updating to the use of width and height from the graphstore.
gephiopengraphgraphvisualizationopengl
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