Enterprise Knowledge (EK) is hiring for 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.
We are excited to share that Enterprise Knowledge has again been named to Inc.’s 2025 Best Workplace List.
As an EK team member, you will have the opportunity to learn from enthusiastic colleagues, 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.
Applicants must be currently authorized to work in the United States on a full-time basis. Enterprise Knowledge will not sponsor applicants for work VISAs.
Our office is located in Arlington, VA. The position will be hybrid for those living within a commutable distance. EK will consider remote work if you reside in the following states: GA, IN, FL, MA, MI, NC, NJ, NY, PA, TX, OR, AZ, IL, WA, CO, TN or ME.

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

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 efficacy and longevity of ontology solutions

A successful candidate will also be able to clearly articulate their design decisions and the rationale behind their choices to a variety of business stakeholders. They will be experienced in defining the steps needed to design, implement and maintain large-scale ontologies for complex business solutions. They are as comfortable working in ontology management systems as they are leading cross-functional meetings.