Remote Ontologist - Semantic Data & AI Governance

SOS International LLC; Seattle (WA); Remote; USD 137,000 - 285,000; Full time

Job summary

SOSi seeks an Ontologist to support a DoD customer by developing and maintaining domain ontologies for a scalable, federated data ecosystem. You will ensure semantic tagging and metadata alignment to enable real-time data integration and AI-assisted decision support.

Collaborate with data scientists, enforce W3C standards (RDF/OWL/SHACL), and deliver governance reports. Remote, full-time role requiring strong ontology and semantic tech skills.

Qualifications

• Master’s degree or 11+ years in ontology development or related field.
• Experience developing ontologies and semantic technologies.
• Proficiency in SPARQL queries and OWL.
• Knowledge of BFO/CCO and W3C standards.

Responsibilities

• Develop, refine, and maintain domain ontologies for structured data integration and AI-assisted decision support.
• Enforce adherence to W3C standards and metadata alignment across data systems.
• Collaborate with data scientists to improve ontology-driven tagging and entity resolution.
• Submit governance reports detailing ontology updates and compliance.

Skills

Ontology development

SPARQL

OWL

BFO

CCO

Java

Python

Git

ArcGIS

Education

Master’s degree or 11+ years ontologies

Tools

SPARQL

OWL

Git

ArcGIS

Databricks Unity Catalog

Bash

Job description

SOSi seeks an Ontologist to support a DoD customer by developing and maintaining domain ontologies for a scalable, federated data ecosystem. You will ensure semantic tagging and metadata alignment to enable real-time data integration and AI-assisted decision support.

Collaborate with data scientists, enforce W3C standards (RDF/OWL/SHACL), and deliver governance reports. Remote, full-time role requiring strong ontology and semantic tech skills.