Dawid Weiss
Owner at The Apache Software Foundation
Greater Poland Voivodeship
Summary
🤩
Rockstar🎓
Top SchoolDawid Weiss is a software architect, researcher and founder with 22 years’ experience building high-performance search and text-clustering systems as co-owner of Carrot Search and lead developer of the Carrot2 project. He holds a PhD in Information Retrieval and combines low-level programming expertise (assembly, C, Java, .NET) with deep contributions to prominent open-source projects like Apache Lucene, where he is a committer and PMC member. His work spans core algorithm engineering, test automation and performance-focused Java libraries (e.g., HPPC), and includes practical fixes for browser embedding and compatibility in Carrot2’s workbench. Based in Greater Poland, he is an ASF full member who blends rigorous academic insight with pragmatic engineering and a knack for uncovering subtle edge cases in compression, FSTs and browser integration.
23 years of coding experience
PhD, Computer Science (Information Retrieval), PhD, Computer Science (Information Retrieval) at Poznan University of Technology
Polish, English
Stackoverflow
168reputation
5kreached
15answers
1question
Github Skills (33)
algorithm10
algorithms10
javascript10
benchmark10
testing10
benchmarking10
zip10
data-structure10
java10
javas10
7zip10
data-structures10
compression10
c-library10
common-library10
Programming languages (13)
Github contributions (5)
carrotsearch/hppc
Feb 2011 - Dec 2021
High Performance Primitive Collections for Java
Role in this project:
Back-end & Automation Engineer
Back-end & Automation EngineerContributions:13 releases, 26 reviews, 727 commits in 10 years 11 months
Contributions summary:Dawid primarily focused on enhancing the project's functionality and maintainability by incorporating new benchmark implementations and migrating existing code to a more suitable structure. They improved the build process by changing the project's configuration for more flexibility and improved release management by producing executable JARs for Caliper benchmark. The user also updated dependencies and refined the code's structure to ensure project integrity.
java
carrot2/carrot2
Jul 2003 - Nov 2022
Carrot2: Text Clustering Algorithms and Applications
Role in this project:Back-end Developer
Back-end DeveloperContributions:34 releases, 3 reviews, 5102 commits in 19 years 7 months
Contributions summary:Dawid's commits focus on enhancements to the error logging mechanism in Internet Explorer 7 (compatible view) and enforcing Edge Internet Explorer within the embedding page. The commits include code modifications to `json2.js` within the workbench and involve changes related to managing lifecycle listeners and adjusting settings to include web page access.
clustering-algorithm
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