Federated Knowledge Graph Architect for AI & Ontology

Cognizant; New York (NY); Hybrid; USD 180,000 - 240,000; Full time

Job summary

Cognizant is seeking a Senior Ontology & AI Architect to design a federated enterprise knowledge graph that connects learner, assessment, skills, workforce, and content data domains. You will build an AI-ready semantic foundation powering next-generation products and LLM-driven experiences.

The role requires 10+ years in ontology engineering and semantic technologies, with hands-on expertise in RDF/OWL, graph databases, and enterprise-scale knowledge graphs.

Qualifications

• 10+ years of experience in Ontology Engineering, Semantic Technologies, Knowledge Graphs, AI/ML, or Data Science.
• Deep expertise in ontology design, semantic data modeling, taxonomies, RDF, OWL, SKOS, SPARQL, and graph-based architectures.
• Hands-on experience building and managing enterprise-scale knowledge graphs and metadata ecosystems.
• Strong background in Machine Learning, NLP, Generative AI, and automated knowledge extraction/classification.

Responsibilities

• Design and define an enterprise-wide ontology framework spanning learner, assessment, skills, workforce, and educational content domains.
• Architect and implement large-scale federated knowledge graph solutions integrating multiple existing knowledge graphs and data sources.
• Develop AI/ML-driven approaches for automated ontology creation, entity classification, ontology alignment, relationship discovery, and semantic enrichment.
• Build semantic models, reasoning frameworks, and inference mechanisms to uncover relationships across domains.
• Collaborate with product, data science, engineering, and business stakeholders to establish a reusable AI-ready knowledge layer.
• Lead the initial PoC focused on Learner Skills to Job Skills Mapping, leveraging assessment outcomes, competencies, skills ontologies, and career pathways.
• Provide strategic guidance on enterprise knowledge graph architecture, governance, scalability, and future AI adoption.

Skills

Ontology Engineering

Semantic Technologies

Knowledge Graphs

AI/ML

Data Science

RDF

OWL

SPARQL

Tools

Neo4j

Stardog

GraphDB

Amazon Neptune

Job description

Cognizant is seeking a Senior Ontology & AI Architect to design a federated enterprise knowledge graph that connects learner, assessment, skills, workforce, and content data domains. You will build an AI-ready semantic foundation powering next-generation products and LLM-driven experiences.

The role requires 10+ years in ontology engineering and semantic technologies, with hands-on expertise in RDF/OWL, graph databases, and enterprise-scale knowledge graphs.