Nicolas Matentzoglu
Independent Consultant - Semantic Technology & Knowledge Engineering at semanticly
Athens, Attica, Greece
Summary
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Rockstar🎓
Top SchoolNicolas Matentzoglu is an independent consultant in semantic technologies and knowledge engineering with 11+ years of experience applying ontologies, mappings and knowledge graphs to biomedical and research data ecosystems. He leads ontology engineering and FAIR standards efforts—contributing to high-profile projects such as the Human Phenotype Ontology, Mondo, Monarch Initiative and the widely used OBO Foundry website—while building tooling like SSSOM and the Ontology Development Kit to make mappings and releases sustainable. His background includes senior roles at EMBL-EBI where he developed automated pipelines for phenotype ontology alignment and knowledge graph ingestion, and he combines deep technical fluency (OWL, SPARQL, RDF, neo4j) with community-led collaboration. Nicolas also helps organisations translate mission-level goals into practical semantic architectures, from LinkML-based data models to CI-driven curation workflows, and he has experience coordinating international ontology translation and AI-assisted curation efforts. An active member of the OBO community, he’s as comfortable contributing front-end and back-end code to open-source registries as he is designing governance and quality-control practices for long-lived semantic projects.
11 years of coding experience
11 years of employment as a software developer
Diplom, Media Informatics, Media Law, Diplom, Media Informatics, Media Law at Universität zu KölnDoctor of Philosophy (PhD), Knowledge Management, Doctor of Philosophy (PhD), Knowledge Management at The University of ManchesterAbitur, English Language, History, Mathematics, German Literature, 1.6, Abitur, English Language, History, Mathematics, German Literature, 1.6 at Kaiser-Karls-Gymnasium Aachen
English, German, Greek
Github Skills (9)
ontology10
html10
user-interface10
metadata10
annotate10
annotations10
annotation-processing10
jekyll9
javascript9
Programming languages (23)
Github contributions (5)
OBOFoundry/OBOFoundry.github.io
Nov 2018 - Dec 2022
Metadata and website for the Open Bio Ontologies Foundry Ontology Registry
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:846 reviews, 509 commits, 738 PRs in 4 years 1 month
Contributions summary:Nicolas primarily contributed to the website's front-end and back-end aspects, making modifications to HTML layouts, includes, and JavaScript files. They also updated navigation menus and added features related to ontology reviews and the OBO Foundry. The user’s contributions included changes to the user interface elements and website structure.
foundryontology-registrybioinformaticssemantic-webmetadata
matentzn/envo
Aug 2020 - Aug 2022
A community-driven ontology for the representation of environments
Contributions:2 PRs, 17 pushes, 8 branches in 2 years
representationdata-managementowlsemanticsobofoundry
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