Data Engineer - Semantic Knowledge Graph Architect

BWX Technologies; Oak Ridge (TN); On-site; USD 86,000 - 136,000; Full time

Benefits offered by this job

Competitive salary

Flexible schedules

Professional development

Inclusive culture

National security programs

Job summary

BWX Technologies seeks a Principal Data Engineer to lead semantic modeling and industrial knowledge architecture for real-time operational intelligence in advanced manufacturing. This on-site role in Oak Ridge, Tennessee supports enterprise knowledge graphs and ontology-driven systems within a high-security DOE/NNSA environment.

You will design and govern large-scale semantic data models, build knowledge graph components, and guide data modernization initiatives while mentoring engineering teams

Qualifications

• Bachelor’s degree in engineering, physics, computer science, or related STEM field.
• Minimum 5 years of data engineering, semantic modeling, or knowledge graph experience.
• Experience designing ontologies with OWL, RDF, RDFS, SKOS, SHACL, SPARQL.
• Hands-on pipelines for structured and unstructured data.
• Experience integrating OT/IoT, edge devices, and SCADA systems.
• Proficiency in Python, Java, or Scala; familiarity with Kubernetes.

Responsibilities

• Design semantic data models and ontologies for unified industrial data interpretation.
• Develop enterprise knowledge graph components using OWL, RDF, RDFS, SKOS, SHACL, SPARQL.
• Build namespaces aligned with ISA-95 and W3C standards for cross-system interoperability.
• Architect scalable storage including time-series databases and lakehouse systems.
• Ingest, reconcile, and contextualize data from multiple sources.
• Govern data with versioning, modularization, and quality gates.
• Map relational models to semantic representations using R2RML and RML.
• Support AI/ML and simulation teams by embedding semantic models in workflows.
• Lead workshops with SMEs to define concepts and requirements.
• Participate in audits, reviews, and security/compliance activities.

Skills

Data engineering

Semantic modeling

Ontology design

Knowledge graphs

Python

Java

Scala

Kubernetes

Education

Bachelor’s degree in STEM

Master’s degree (preferred)

Tools

OWL

RDF

RDFS

SKOS

SHACL

SPARQL

R2RML

RML

Databricks

Snowflake

AWS analytics

Job description

BWX Technologies seeks a Principal Data Engineer to lead semantic modeling and industrial knowledge architecture for real-time operational intelligence in advanced manufacturing. This on-site role in Oak Ridge, Tennessee supports enterprise knowledge graphs and ontology-driven systems within a high-security DOE/NNSA environment.

You will design and govern large-scale semantic data models, build knowledge graph components, and guide data modernization initiatives while mentoring engineering teams