SOSi
defense and government services
Ontologist
Neural analysis suggests this role is
optimal for mid candidates.
“Ontologist at SOSi. Skills: Ontology development, Semantic technologies, SPARQL, OWL. Develop domain-specific ontologies. Refine domain-specific ontologies”
Industry & Context.
Analytical skills
Contingent upon contract award
What They're Looking For.
Must Have
Master's degree or higher, 11+ years of experience in ontology development, Proficiency in writing advanced SPARQL queries, Skills in the W3C Web Ontology Language (OWL), Solid understanding of Basic Formal Ontology (BFO), Solid understanding of Common Core Ontologies (CCO), Proficiency in both Java and Python, Experience with Bash scripting, Hands-on experience with ESRI data tools, Background in DevSecOps practices, Background in version control systems (Git), Background in CI/CD pipelines, Analytical skills, Attention to detail, Ability to work collaboratively, Expertise in ontology design, Expertise in semantic data modeling, Expertise in SPARQL query development, Proficiency in W3C standards (RDF, OWL, SHACL)
Nice to Have
Ph. D. in Computer Science, Ph. D. in Information Science, Ph. D. in Artificial Intelligence, Ph. D. in Geospatial Science, Ph. D. in GIS, Ph. D. in Data Science, Ph. D. in Business Analytics, Ph. D. in Cognitive Science, Ph. D. in a closely related field
What You'll Do.
Develop domain-specific ontologies
Refine domain-specific ontologies
Maintain domain-specific ontologies
Support structured data integration
Support semantic search
Support AI-assisted decision support
Enforce adherence to W3C standards
Enforce metadata alignment
Collaborate with data scientists
Collaborate with analysts
Ensure ontology-driven tagging enhances relevance
Ensure entity resolution enhances relevance
Submit Ontology Governance & Standardization Report
How You'll Work.
Team & Collaboration
Collaborate with data scientists; Collaborate with analysts
Full Job Description
Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide. This position is contingent upon contract award SOSi is seeking an Ontologist to support mission requirements for a structured approach to further develop, integrate, and sustain a scalable, federated data ecosystem that enhances interoperability, governance, and mission-driven analytics for a DoD customer. The primary objective of the program is to bridge the operational gaps between DoD, IC, interagency, and non-traditional international partners to enable real-time information sharing, dynamic data integration, and mission-tailored analytical capabilities. Essential Job Duties: * Develop, refine, and maintain domain-specific ontologies to support structured data integration, semantic search, and AI-assisted decision support. * Enforce adherence to W3C standards and metadata alignment between Databricks Unity Catalog, GIS metadata systems, and operational data stores. * Collaborate with data scientists and analysts to ensure ontology-driven tagging and entity resolution enhances the relevance of research outputs. * Submit the Ontology Governance & Standardization Report, detailing ontology updates, integrations, and compliance with metadata standards. ## Qualifications * Master’s degree or higher (e.g., Ph.D.) in Computer Science, Information Science, Artificial Intelligence, Geospatial Science, GIS, Data Science, Business Analytics, Cognitive Science, or a closely related field; OR a minimum of 11+ years of experience in ontology development, semantic technologies. * Possess the knowledge and capability to develop ontologies: * Proficiency in writing advanced SPARQL queries. * Strong skills in the W3C Web Ontology Language (OWL). * Solid understanding of Basic Formal Ontology (BFO) and Common Core O
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