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.
Job Description*** 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.
- 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 Ontologies (CCO).
- Proficiency in both Java and Python for ontology-driven application development
- Experience with Bash scripting for automation tasks.
- Hands-on experience with ESRI data tools, including ArcGIS.
- Background in DevSecOps practices, version control systems (e.g., Git) and CI/CD pipelines.
- Strong analytical skills, attention to detail, and the ability to work collaboratively.
- Demonstrated expertise in ontology design, semantic data modeling, and SPARQL query development, with proficiency in W3C standards (RDF, OWL, SHACL) and supporting frameworks like Basic Formal Ontology (BFO) and Common Core Ontologies (CCO).
Working Conditions
- Remote. Offsite.
Working at SOSi
All interested individuals will receive consideration and will not be discriminated against for any reason.
Skills Required
- Master's degree or higher in Computer Science, Information Science, AI, or related field; OR 11+ years experience in ontology development
- Proficiency in writing advanced SPARQL queries
- Strong skills in W3C Web Ontology Language (OWL)
- Solid understanding of Basic Formal Ontology (BFO) and Common Core Ontologies (CCO)
- Proficiency in Java and Python for application development
- Experience with Bash scripting for automation tasks
- Hands-on experience with ESRI data tools, including ArcGIS
- Background in DevSecOps practices and version control systems
- Strong analytical skills and attention to detail
- Demonstrated expertise in ontology design and SPARQL query development
SOSi Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about SOSi and has not been reviewed or approved by SOSi.
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Healthcare Strength — Health coverage is considered a relative strength, with international plan options and substantial employer contribution that support OCONUS and travel-heavy work. Company materials also highlight a comprehensive medical offering alongside wellness support.
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Retirement Support — A 401(k) program is available, with indications of employer matching though specifics are not publicly detailed. This suggests foundational retirement support for eligible employees.
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Career-Linked Recognition & Rewards — Compensation is often characterized as competitive for cleared, hard‑to‑hire, and certain overseas or mission‑critical roles. Pay levels appear closely tied to contract demands, clearance, and location.
SOSi Insights
What We Do
SOSi is a technology and services integrator focused on the aerospace, defense, and government services industry, described as one of the largest private, founder-owned companies in its sector.
