Maxar

Ontology Engineer (TS/SCI)

Herndon, VA · Contract

No sponsorship$137k-$182kDetected 20 days ago

TypeScriptMachine LearningCybersecurityResearchLeadershipMentoring

About the role

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what's happening now and shape what's coming next.
Employment for cleared roles is contingent upon verification of clearance status.
Export Control/ITAR: Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).

In coordination with domain experts, design, develop, and maintain domain-specific ontologies, taxonomies, and knowledge graphs that support Object-Based Intelligence mission objectives.
Establish and maintain semantic data integration frameworks that enable interoperability across internal and external object-management systems.
Collaborate with analysts, data scientists, engineers, and Government stakeholders to capture requirements and translate mission needs into formal knowledge models.
Develop and maintain ontology governance processes, standards, documentation, and version-control practices to ensure consistency and scalability.
Support AI/ML initiatives by providing structured knowledge representations that enhance model explainability, interpretability, and contextual reasoning.
For all other states, we use geographic cost of labor as an input to develop market-driven ranges for our roles, and as such, each location where we hire may have a different range.

Must be a US citizen and have an active TS/SCI with CI poly.
12 years of experience and an advanced degree or 17 years of experience with a bachelor's degree.
Experience applying Semantic Web technologies, including RDF, OWL, and SPARQL.
Knowledge of ontology engineering methodologies, data modeling principles, and semantic interoperability frameworks.
Ability to communicate complex technical concepts effectively to both technical and non-technical stakeholders.
To be eligible for this position, you must be a U.S. Citizen.
This position requires an active U.S. Government security clearance, applicants who do not currently hold the required clearance will not be eligible for consideration.

Experience providing technical leadership, mentoring, and formal knowledge transfer to Government personnel or large multidisciplinary teams.
Certified Data Management Professional (CDMP) or equivalent data architecture certification.
Certified Knowledge Manager (CKM) or comparable knowledge management credential.
Formal training or certification in Semantic Web technologies, knowledge graphs, ontology engineering, RDF, OWL, or SPARQL.
The listed range reflects the expected pay for this position, and final offers will be determined based on each candidate's experience, expertise, and alignment with the role.

Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).
Please review the job details below.
This position requires an active U.S. Government Security Clearance at the TS/SCI level with CI polygraph.

To support pay transparency, Vantor includes salary ranges in all U.S. job postings.
Starting pay for this role will fall within the listed range and will be based on factors such as experience, qualifications, skills, location, and market conditions.
Candidates who meet the minimum requirements for the role should not expect to receive compensation at the top of the range.
The listed range reflects the expected pay for this position, and final offers will be determined based on each candidate's experience, expertise, and alignment with the role.
The base pay for this position within the Washington, DC metropolitan area is: $137,000.00 - $182,000.00 - $200,200.00 annually.

You can find more information on our benefits at: https://www.Vantor.com/careers

Vantor is a place for problem solvers, changemakers, and go-getters-where people are working together to help our customers see the world differently, and in doing so, be seen differently.

Vantor is an equal opportunity employer committed to an inclusive workplace.
We believe in fostering an environment where all team members feel respected, valued, and encouraged to share their ideas.
All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability, protected veteran status, age, or any other characteristic protected by law.
EEO Policy: Vantor is an

This listing is sourced directly from Maxar's careers page and normalized into a canonical job model.