Senior Knowledge Graph Architect – AI-Ready Ontologies

Cognizant; Atlanta (GA); Remote; USD 130,000 - 160,000; Full time

Benefits offered by this job

Medical/Dental/Vision/Life Insurance

Paid holidays plus PTO

401(k) plan and contributions

Disability (Long-term/Short-term)

Job summary

Cognizant Technology Solutions Corporation is seeking a Senior Knowledge Graph & Ontology Architect to design and govern enterprise semantic architectures powering AI-ready knowledge systems.

You will collaborate with data architects, engineers, domain experts, AI specialists, and client stakeholders to establish a semantic foundation for enterprise knowledge graphs, search, analytics, and agentic AI solutions.

Qualifications

• 8+ years of experience in data architecture, knowledge graph architecture, ontology engineering, or related disciplines.
• Hands-on with OWL/RDF ontology development, semantic modeling, taxonomy management, SHACL constraint authoring or equivalent ontology frameworks.
• Experience architecting graph-based knowledge systems using platforms such as Neo4j, Amazon Neptune, TigerGraph, GraphDB, Stardog, Apache Jena, Spanner Graph, or similar technologies.
• Strong proficiency in Python and SQL, with working knowledge of Google Cloud Platform services including BigQuery, Dataplex, and Vector Search.
• Experience establishing data governance frameworks, including business glossaries, KPI definitions, lineage standards, access controls, and metadata governance.
• Proven ability to collaborate with technical and business stakeholders to resolve complex data modeling challenges and drive enterprise architecture decisions.

Responsibilities

• Design and govern enterprise ontologies, semantic models, and knowledge graph architectures, including OWL/RDF ontologies, classes, properties, taxonomy structures, and SHACL validation frameworks.
• Lead the development of business domain models and governed vocabularies across key entities, ensuring consistency, traceability, and alignment with business objectives.
• Define and maintain enterprise business glossaries, KPI registries, semantic standards, and governance processes, including ownership models and change management workflows.
• Architect graph-based knowledge platforms using technologies such as Spanner Graph, Neo4j, Amazon Neptune, TigerGraph, GraphDB, Dataplex, BigQuery, and Vector Search.
• Partner with engineering, AI, and platform teams to establish governance controls, security standards, lineage frameworks, and AI architecture guardrails that ensure trustworthy and scalable solutions.

Skills

Data architecture

Knowledge graphs

Ontology engineering

Semantic modeling

Python

SQL

GCP BigQuery

Tools

Neo4j

Amazon Neptune

TigerGraph

GraphDB

Stardog

Jena

Job description

Cognizant Technology Solutions Corporation is seeking a Senior Knowledge Graph & Ontology Architect to design and govern enterprise semantic architectures powering AI-ready knowledge systems.

You will collaborate with data architects, engineers, domain experts, AI specialists, and client stakeholders to establish a semantic foundation for enterprise knowledge graphs, search, analytics, and agentic AI solutions.