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Enterprise Knowledge

Ontology Consultant

Remote, United States

The salary range for this role is $110,000 to $150,000, with most candidates likely to fall in the lower half.

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Job details

Pay: The salary range for this role is $110,000 to $150,000, with most candidates likely to fall in the lower half.
Posting language: English
Posted: Jul 8, 2026

Original job description

Enterprise Knowledge (EK) is hiring a full-time Ontology Consultant to join our growing Semantic Design and Modeling Practice. This individual will lead ontology design and implementation in support of dynamic and fast-paced semantic solutions for a range of commercial and federal clients. In addition to delivering ontology models, this Ontologist will advise clients at varying levels of maturity on how to implement semantic best practices and expand and scale their ontology programs. The right candidate loves logic and rule-based systems (think logic puzzles, workflow diagrams, linguistics and grammar rules, mathematical proofs, set theory, etc.), and is skilled at communicating about ontology and its value to different audiences. As a successful Ontology Consultant, you will be able to clearly articulate your design decisions and the rationale behind your choices to a variety of business stakeholders. You will be experienced in defining the steps needed to design, implement, and maintain large-scale ontologies for complex business solutions. You will also be comfortable working in ontology management systems, as you lead cross-functional meetings. As an EKer, you will join a fast-growing company that is committed to equity and inclusion, have the opportunity to work in a collaborative workplace, take advantage of our unique benefits, and help build our innovative culture. To read more about the impactful work we are doing and to see the latest thought leadership from EK, follow us on LinkedIn.

Responsibilities

The Ontology Consultant will be responsible for advising clients on ontology strategy, and leading teams in the definition and execution of ontology design, implementation, and management to meet client goals and needs.

Facilitate stakeholders to understand business needs and translate them into ontology and semantic solutions
Develop and maintain ontologies, utilizing semantic and data management best practices
Assess and evaluate existing ontologies and make recommendations for improvement and alignment with industry standards
Provide training and guidance to clients and prepare documentation on the value, use, and maintenance of ontologies
Collaborate with cross-functional teams to ensure the efficacy and longevity of ontology solutions

As a federal contractor, Enterprise Knowledge will not sponsor a new applicant for employment authorization or offer any immigration related support for this position (i.e., H1B, F-1 OPT, F-1 STEM OPT, F-1 CPT, J-1, TN, E-2, E-3, L-1, and O-1, or any EADs or other forms of work authorization that require immigration support from an employer. Our office is located in Arlington, VA, and operates on a hybrid model. While local candidates are preferred, we are also able to hire remote candidates residing in the following states: CO, FL, MA, NC, NH, NM, NY, OR, PA, RI, TX, and WA.

Required Skills and Experience:

2+ years of experience developing and managing ontologies in business environments with a strong understanding of ontology applications, design and management principles and best practices
Experience leading full ontology development lifecycle - requirements gathering and scoping, design, implementation, and management and governance
Expertise in semantic standards such as RDF, OWL, SHACL, SPARQL
Hands-on experience with ontology tooling and management systems such as Protégé
Strong communication, interpersonal, and facilitative skills to work effectively on cross-functional teams and with stakeholders at all levels
Bachelor’s degree or higher in Information Science, Knowledge Management, Library Science, Management of Information Systems, Philosophy (Formal Ontology, Epistemology), Linguistics or other related field

Preferred Skills and Experience:

Understanding of machine learning and artificial intelligence concepts, and experience working with ontology in the context of AI
Understanding of typical solution architectures for semantic solutions

Salary Information:

EK considers a broad range of factors in considering employee salary, including a candidate’s skills, experience, education, certifications, past successes, and qualifications. The salary range for this role is $110,000 to $150,000, with most candidates likely to fall in the lower half. This range does not guarantee a specific salary and may be adjusted based on the needs of the company and the candidate’s qualifications.

Data Privacy Notice:

Enterprise Knowledge (EK) is committed to protecting your personal information. When you submit your application, we collect and process your personal data solely for recruitment and hiring purposes. We will not use your information for any other purpose without your explicit consent. We may share your information with third parties only as necessary to evaluate your application or comply with legal requirements. If we need to use your data for a purpose beyond the original intent or disclose it to additional third parties, we will provide you with prior notice. You have the right to access the personal information we hold about you and to request corrections, amendments, or deletion of any inaccurate data or data processed in violation of applicable privacy principles. Requests for such changes will be reviewed and accommodated unless the burden or expense of providing access would be disproportionate to the risks to your privacy, or where the rights of other individuals may be affected. By submitting your application, you acknowledge that you have read and understood this notice. If you have any questions about how we handle your personal data or need to update your information, please contact us at careers@enterprise-knowledge.com.

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