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Semantic Modeler/Ontologist (100% Remote, Multiple Openings)

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United States

Job Type

Full-Time Long-term Contract



About the Role

Nerdy about data and passionate about delivering high quality work? We offer great learning opportunities, exposure to a wide variety of projects and customers, and a very welcoming team environment. We are looking for self-motivated, proactive, and goal-oriented people to help us grow our services and become even better at what we do. We offer career advancement and the opportunity to participate in a high-growth business with a positive, motivating and challenging environment.

As an ontologist for Reclassify AI, you will partner with client groups to design and deploy sophisticated semantic data models with the goal towards improving data discoverability, search, and product development.


  • Work with SMEs to elicit requirements and develop logical models

  • Build semantically rich and extensible ontologies

  • Develop and optimize SPARQL queries

  • Contribute to data integration and mapping efforts to harmonize data with customer ontologies

  • Contribute to ontology modeling and technology best practices and principles within our organization and with our clients

  • Partner with cross-functional teams to support development and integration efforts

  • Analyze and implement knowledge organization strategies using tools capable of ontology management and semantic enrichment

  • Maintain awareness of industry developments related to ontology use, knowledge organization, data modeling, and machine learning

  • Understand and adhere to W3C standards related to ontologies, in particular RDF, RDFS, OWL, SKOS, and SHACL

  • Manage and oversee projects as assigned

Our ideal candidate has...

  • 5-7 years designing and managing ontologies, taxonomies, or thesauri

  • At least 3 years experience or training in using W3C standards including linked and canonical data and ontologies ( JSON, XML, RDF, RDFS, OWL, and SKOS)

  • At least 3 years' experience or training in ontology and linked data tools (Protégé, TopQuadrant, PoolParty, Stardog, AnzoGraph, Neptune, etc)

  • At least 3 years' experience or training with SQL or SPARQL

  • Knowledge of open-source and commercial ontology engineering editors (e.g. Protege, TopQuadrant products, PoolParty)

  • Experience with the deployment of knowledge graph technology solutions

  • BA or BS degree in a related field

About the Company

At Reclassify AI, we enable smarter machines by building best-in-class semantic technology solutions and by harnessing the power of intellectually diverse teams. We design reusable frameworks that scale across the enterprise and packaged data analytic solutions that emphasize the intersection of social behavior and computational systems. Our solutions are designed to help clients reshape their internal data intelligence culture, creating a more effective and efficient data management ecosystem.

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