Ontologist - Sr. Associate

We are seeking a highly skilled Computational Linguist with expertise in ontology development and knowledge graph implementation. This role will be pivotal in shaping our data infrastructure and ensuring the accurate representation and integration of complex domain knowledge into an agentic ecosystem. You will leverage industry best practices to design, develop, and maintain ontologies and knowledge graphs. We view these components as foundational to the modernization of our digital infrastructure and your value to our team will reflect that conviction.

Help us transform a categorical taxonomy that maps customer intents to servicing flows into an ontological representation of the domain of knowledge required to accomplish the same task. Provide insight on how this critical piece of infrastructure should be shaped to best fit within the current ML, annotation, and analytics pipelines being used within our product area.

• Design and apply ontology principles to improve semantic reasoning and data integration, ensuring alignment with business requirements and industry standards.
• Design frameworks for incorporating knowledge graphs within a model architecture designed for classification and extraction.
• Collaborate with domain experts, product managers and customers to capture and formalize domain knowledge into ontological structures and vocabularies & improve data discoverability.
• Develop and maintain comprehensive ontologies to model various business entities, relationships, and processes.
• Create/Build Knowledge Graph based on the ontologies while ensuring data integrity and data consistency.
• Utilize knowledge graphs to enable advanced analytics, search, and recommendation systems.
• Ensure the quality, accuracy, and consistency of ontologies, and knowledge graphs.
• Define and implement data governance processes and standards for ontology development and maintenance.
• Collaborate with internal engineering teams to align data architecture with Gen AI capabilities.
• Leverage AI techniques by aligning knowledge models with RAG pipelines and agent orchestration.
• Work closely with data scientists, software engineers, and business stakeholders to understand their data requirements and provide tailored solutions.

• Master's degree (or equivalent experience) in Computational Linguistics, Computer Science, NLP, AI, Linguistics, or a related field.
• 2-3 years of hands‑on experience building ontologies and knowledge systems.
• Proficiency with graph databases such as Neo4j, Graph
  
  DB (RDF based).
• Understanding of semantic standards like OWL, RDF, W3C, query languages (SPARQL), validation standards (SHACL), and property graph approaches.
• Experience with large‑scale knowledge graph development, including schema design, entity modeling, and relationship mapping to support various business domains.
• 2+ years of experience in NLP or AI projects (industry or research).
• At least one year of experience with Gen AI.
• Familiarity with LLM behavior, prompt‑based evaluation, and generative model outputs.
• Proficiency in Python and NLP/data science libraries: pandas, numpy, scikit‑learn, NLTK.
• Comfortable with structured data formats (JSONL, CSV), Jupyter notebooks, and pandas‑based analysis.
• Experience using Git for version control and collaborative development.
• Strong written communication skills for documenting experiments and results.
• Experience working in cross‑functional or research‑oriented teams.

• At least one year of experience with Agentic AI (e.g. Auto Gen, Lang Graph, CrewAI, Sierra).
• At least one year of experience with agentic AI frameworks and evaluation.
• Experience using and fine‑tuning transformer‑based language models (e.g., BERT, GPT).
• Familiarity with Gen AI concepts like retrieval‑augmented generation and agent‑based AI.
• Experience working with public datasets (e.g., Hugging Face, Kaggle).
• Understanding of model evaluation methodologies, including human‑AI comparison and red teaming.
• Experience working with financial institutions/financial products and services.

Chase is a leading financial services firm, helping nearly half of America's households and…