Senior Ontology Engineer
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InterImage
Arlington, VA, US
Summary
Design, build, and maintain enterprise ontologies and knowledge graphs while managing governed data ingestion. Perform full-stack development tasks including Python services, web UI, and AWS infrastructure within a Scrum team.
Job Description
PixelRain AI is a small, fast-moving AI company delivering an AI-powered product-lifecycle knowledge platform for a U.S. Department of War (DoW) customer: governed ingestion of technical documents, an enterprise ontology and knowledge graph, and generative-AI applications that draft maintenance-planning products and answer engineering questions with citations — running in the customer's cloud environment, with an offline variant for disconnected use. Small team, real users, working software demonstrated every sprint.
Salary: 175,000 - 228,000
Active US Security Clearance Required
What you'll do
• Design, build, and maintain the enterprise ontology (BFO/CCO-aligned) and controlled vocabularies, and map source-system data into them.
• Build and manage the knowledge graph: RDF triple store (Apache Jena/Fuseki or similar), SHACL validation, SPARQL queries.
• Build the governed ingestion path so extracted content lands in the graph with provenance and confidence, and connect the graph to retrieval and GenAI applications.
• Carry normal full-stack development work alongside the ontology work — Python services, web UI, AWS.
• Work in a small Scrum team; demo working software every sprint.
- Active Secret OR Top Secret Clearance Required
- 5+ years of hands-on semantic-technology work: OWL, RDF/Turtle, SHACL, and SPARQL.
- Experience building ontologies aligned to an upper ontology — BFO and CCO strongly preferred.
- Production experience with a triple store (Apache Jena/Fuseki, RDF4J, or similar).
- Solid general software engineering: Python, APIs, Git — able to handle full-stack tasks (web + AWS), not ontology-only.
- Working familiarity with LLMs and RAG — you’ve connected structured knowledge to generative applications.
InterImage, Inc. is an award-winning, Woman-Owned Small Business (WOSB) with 30+ years of innovation and proven performance supporting our nation’s most critical missions. As a trusted prime contractor, we deliver secure, agile digital transformation solutions across the Department of War (DoW), the Intelligence Community (IC), and federal civilian agencies.
InterImage helps government organizations modernize mission delivery through business process management, workflow automation, systems integration, and mission-critical software solutions. By combining deep domain expertise with disciplined execution and technical excellence, we develop secure, scalable, and cost-effective technologies that help our customers accomplish complex mission objectives with confidence.
With over three decades of experience supporting enterprise government and commercial environments, our capabilities span application modernization, software development, cybersecurity, cloud, data management, robotic process automation (RPA), and artificial intelligence (AI). Complementing these capabilities, our sister company, PixelRain, enhances our ability to deliver innovative AI-driven solutions that help customers solve complex mission and business challenges. Our customers count on us for adaptable solutions that increase efficiency, improve performance, reduce costs, strengthen security, and improve standardization.
We ensure maximum agency efficiency and operational readiness by seamlessly integrating foundational enterprise infrastructure with next-generation capabilities. Backed by industry-leading CMMI Level 3 (Dev), ISO 9001:2015 and 27001:2022 certified engineering lifecycles, we guarantee on-time, on-budget, and on-target delivery for the vital systems that power and protect our nation. Driven by a corporate culture of respect, transparency, and collaboration, InterImage remains dedicated to advancing the government missions that matter most.
Founded
1996
Company size
51-200 employees
Industry
Information Technology & Services
Org type
Privately Held
Headquarters
Arlington, Virginia
InterImage, Inc. is an award-winning, Woman-Owned Small Business (WOSB) with 30+ years of innovation and proven performance supporting our nation’s most critical missions. As a trusted prime contractor, we deliver secure, agile digital transformation solutions across the Department of War (DoW), the Intelligence Community (IC), and federal civilian agencies.
InterImage helps government organizations modernize mission delivery through business process management, workflow automation, systems integration, and mission-critical software solutions. By combining deep domain expertise with disciplined execution and technical excellence, we develop secure, scalable, and cost-effective technologies that help our customers accomplish complex mission objectives with confidence.
With over three decades of experience supporting enterprise government and commercial environments, our capabilities span application modernization, software development, cybersecurity, cloud, data management, robotic process automation (RPA), and artificial intelligence (AI). Complementing these capabilities, our sister company, PixelRain, enhances our ability to deliver innovative AI-driven solutions that help customers solve complex mission and business challenges. Our customers count on us for adaptable solutions that increase efficiency, improve performance, reduce costs, strengthen security, and improve standardization.
We ensure maximum agency efficiency and operational readiness by seamlessly integrating foundational enterprise infrastructure with next-generation capabilities. Backed by industry-leading CMMI Level 3 (Dev), ISO 9001:2015 and 27001:2022 certified engineering lifecycles, we guarantee on-time, on-budget, and on-target delivery for the vital systems that power and protect our nation. Driven by a corporate culture of respect, transparency, and collaboration, InterImage remains dedicated to advancing the government missions that matter most.
Founded
1996
Company size
51-200 employees
Industry
Information Technology & Services
Org type
Privately Held
Headquarters
Arlington, Virginia
