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  • $100k

    Description Are you passionate about building solutions for our greatest national security challenges? Are you searching for engaging work with an employer that prioritizes impact, innovation, and personal development? Do you value working in a creative and collaborative...
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    Temporary work
    Flexible hours

    Johns Hopkins Applied Physics Lab

    Laurel, MD
    2 days ago
  • $137k - $284.55k

     ...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... 
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    Full time
    Contract work
    Worldwide

    SOSi

    United States
    10 hours agonew
  • $156k - $234k

     ...every opportunity to achieve your goals - and to help others accomplish theirs, too. Join our team as we help shape the future. The Ontologist (Knowledge Graph Engineer) is responsible for designing, implementing, and operationalizing enterprise semantic models,... 
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    Temporary work
    Work experience placement
    Work at office
    Remote work
    3 days per week

    SwiftCruit

    Hartford, CT
    2 days ago
  • Job Title: Architect - Ontologist / Knowledge Modeler Job Description We are seeking an experienced Ontologist / Knowledge Modeler with Strong experience to drive the design and implementation of knowledge graphs, ontologies, and data models for our organization. The ideal... 
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    Galent

    Dallas, TX
    2 days ago
  • Job Overview Senior Data Ontologist provides expert-level knowledge engineering support to intelligence and mission-focused organizations, enabling enhanced data interoperability, ISR integration, and machine-speed decision advantage across enterprise environments. This... 
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    WTI Solutions

    Hampton, VA
    3 days ago
  • Overview Streamline Defense is seeking a Project Manager (Ontologist) to support the U.S. Southern Command (USSOUTHCOM) Enterprise Data & Analytics (EDA) program at SOUTHCOM Headquarters in Doral, FL. This position is contingent upon contract award. Responsibilities... 
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    Contract work
    For contractors

    Streamline Defense

    Miami, FL
    17 hours ago
  •  ...Job Description Job Description Position Summary The Ontologist supports mission-critical objectives under the referenced work order by developing and maintaining ontologies, enforcing W3C standards, and ensuring data consistency for structured data integration... 
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    For contractors

    Quiet Professionals LLC

    Tampa, FL
    a month ago
  • SwiftCruit is seeking an Ontologist (Knowledge Graph Engineer) responsible for designing and implementing enterprise semantic models. This position supports AI-driven analytics by translating complex domain knowledge into usable semantic assets. With a hybrid or remote... 
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    Remote work

    SwiftCruit

    Hartford, CT
    2 days ago
  • $100k - $245k

    Johns Hopkins Applied Physics Lab in Maryland is seeking a talented individual to join the Threat Analytic Systems Group. You will work on developing ontologies to enhance national security capabilities. Key qualifications include a Master's degree in a relevant field and...
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    Johns Hopkins Applied Physics Lab

    Laurel, MD
    4 days ago
  • $112k - $238k

    Vantor Inc. is seeking an Ontology Lead to develop and maintain domain-specific ontologies supporting Object-Based Intelligence. This role requires US citizenship and active TS/SCI clearance with CI polygraph. The selected candidate will design ontologies, apply Semantic...
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    Vantor Inc.

    Washington DC
    17 hours ago
  • A leading data solutions provider in Virginia is seeking a Senior Data Ontologist to enhance data interoperability for defense missions. This individual will be responsible for developing and maintaining ontologies and semantic models that support intelligence analysis... 
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    WTI Solutions

    Hampton, VA
    3 days ago
  •  ...for setting the firmwide data publishing strategy and driving the adoption of the strategy across the firm. As a Vice President-Ontologist within the JP Morgan Chase team, you will be instrumental in shaping our knowledge representation. Your role will involve... 
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    Work at office

    JPMorgan Chase & Co.

    New York, NY
    14 days ago
  •  ...Job Description Job Description Join the Nalley Consulting team at Southcom HQ. Position: Ontologist LCAT:  Senior Location: SOUTHCOM HQ, Doral, FL / Off-site Office:  U.S. SOUTHERN COMMAND J2 Required clearance:  No Required education:  Master’s... 
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    Temporary work
    Work at office
    Flexible hours

    Nalley Consulting

    Miami, FL
    3 days ago
  • $105k

    The Johns Hopkins University Applied Physics Laboratory is seeking a talented individual to work on creating ontologies that address national security challenges. This role involves collaborating with software engineers and data scientists to establish ontology requirements...
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    The Johns Hopkins University Applied Physics Laboratory

    Laurel, MD
    1 day ago
  • $112k - $238k

     ...maintain domain-specific ontologies and knowledge models in support of Object Based Intelligence (OBI) mission requirements. The Lead Ontologist serves as the technical authority for the design, development, and maintenance of domain-specific ontologies and knowledge models... 
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    Vantor Inc.

    Washington DC
    17 hours ago
  •  ...accelerated 8‑week delivery timeline with weekly milestone gates and hard dependencies Ability to work closely with a Data Modeller/Ontologist to translate conceptual models into working technical implementations Experience in financial services or insurance data... 

    Voto Consulting LLC

    New York, NY
    1 day ago
  •  ...Senior AI Data Engineers to implement and operationalize Comply’s semantic layer — turning the ontological models defined by our ontologist and architects into working knowledge graphs, vector search infrastructure, and LLM‑powered pipelines. This is a hands‑on engineering... 
    Work visa

    Medium

    York, NE
    1 day ago
  • Galent is seeking an experienced Ontologist / Knowledge Modeler to drive the design and implementation of knowledge graphs and ontologies. The ideal candidate will have hands-on experience with graph database technologies and knowledge modeling, with a focus on industry... 

    Galent

    Dallas, TX
    1 day ago
  • The Johns Hopkins Applied Physics Laboratory (APL) is seeking an Ontologist to work on innovative solutions for national security challenges. In this role, you will collaborate with software engineers and data scientists to build and evaluate ontologies that bridge critical... 

    Johns Hopkins Applied Physics Laboratory

    Laurel, MD
    1 day ago
  • $156k - $234k

    The Hartford is seeking an Ontologist (Knowledge Graph Engineer) responsible for designing and implementing enterprise semantic models that enhance AI-driven analytics. This role ensures the modeling of business concepts for scalable AI adoption across various domains.... 
    Remote job

    The Hartford

    Hartford, CT
    3 days ago
  • $105k - $290k

    Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, seeks an Ontologist to develop capabilities for national security missions. You will work collaboratively with engineers and scientists to create ontologies that inform essential operations. The position requires... 

    Johns Hopkins Applied Physics Laboratory

    Laurel, MD
    1 day ago
  • Streamline Defense is looking for a Project Manager (Ontologist) to support the U.S. Southern Command Enterprise Data & Analytics program at SOUTHCOM Headquarters in Doral, FL. The ideal candidate will lead complex technical projects focused on ontology development. Qualifications... 

    Streamline Defense

    Miami, FL
    1 day ago
  • Data Modeler Location: 100% Remote - USA Type: Contract Job Qualifications: Experience in Ontology is a must have Understanding of REST API and/or GraphQL API interface design Or have worked as Ontologist in previous role Understanding of pub.
    Contract work
    Remote work

    Zortech Solutions

    United States
    17 hours ago