Knowledge Graph Engineer

About the role

Seeking an experienced Knowledge Graph Engineer to design and implement enterprise semantic data models, ontologies, and Stardog-based Knowledge Graphs that enable AI-driven contract and invoice intelligence through semantic search, Graph RAG, Agentic AI, and contextual data relationships to join our team in Irving, TX.

Responsibilities

• Map contract, invoice, vendor, and payment entities into semantic models.
• Develop SPARQL queries.
• Enable semantic search and reasoning capabilities.
• Support AI-driven data discovery.
• Create scalable graph-based solutions that support Gen AI, Agentic AI, and enterprise analytics use cases through semantic enrichment and contextual data relationships.
• Knowledge Graph Development: design enterprise knowledge graph architecture; develop semantic data models and ontologies; build entity relationship models across contracts, invoices, vendors, purchase orders, cost centers, approval workflows; create ontology-driven business rules.
• Stardog Development: configure and manage Stardog environment; develop and optimize RDF models, OWL ontologies, SPARQL queries, graph analytics; implement semantic reasoning and inferencing.
• Databricks Integration: ingest structured and unstructured data into Databricks; build pipelines for contract and invoice data; create mappings from relational models to knowledge graph structures; implement automated graph population processes.
• Semantic AI Enablement: support Gen AI and Agentic AI solutions through enterprise knowledge graph integration; enable contextual retrieval and semantic search capabilities; build graph-based RAG solutions.
• Data Governance: define taxonomy, metadata, and ontology governance standards; establish semantic data quality frameworks; maintain lineage and traceability of business entities.

Requirements

• Minimum 8+ years of experience.
• Location: Irving, TX (Hybrid 3 days Work from Office).

Qualifications

• Engineering Degree BE/ME/BTech/MTech/BSc/MSc.
• Technical certification in multiple technologies is desirable.

Skills

• Semantic Technologies
• Stardog
• RDF
• OWL
• SPARQL
• Knowledge Graph Development
• Ontology Design
• Semantic Modeling
• Data Engineering
• Databricks
• PySpark
• SQL
• ETL/ELT Design
• Data Modeling
• Programming
• Python
• REST APIs
• Cloud Platforms
• Azure (Preferred)
• AWS
• GCP
• Graph RAG Architecture
• Gen AI & Knowledge Graph Integration
• Enterprise Data Governance
• Contract & Invoice Domain Knowledge
• Taxonomy and Semantic Layer Design
• Azure Cloud Platform
• Master Data Management (MDM)
• Stardog Platform Administration & Development
• Ontology Design & Semantic Modelling
• RDF, OWL, SPARQL Knowledge Graph Development
• Databricks, PySpark, SQL, Python Development
• Data Modelling and Metadata Management
• Graph-based Data Integration