Senior Stardog & Knowledge Graph Engineer

Vizient, Inc.; Edina (MN); On-site; USD 102,000 - 179,000; Full time

Job summary

Vizient, Inc. in Edina, MN seeks a Knowledge Graph Engineer to install, configure, and maintain Stardog environments across development, test, and production, ensuring availability, security, and performance.

You will manage RDF/OWL/SHACL models for healthcare concepts and collaborate with governance teams on ontologies, while integrating with SQL Server, PostgreSQL, Databricks, and cloud services in a Kubernetes/Docker based stack.

Qualifications

• Experience with Stardog or similar knowledge graph platforms.
• Strong knowledge of RDF/OWL/SHACL semantic data models.
• Experience integrating graph data with SQL/NoSQL systems.
• Familiarity with cloud deployments and container orchestration.

Responsibilities

• Install, configure, monitor, upgrade, and maintain Stardog environments across development, test, and production.
• Ensure knowledge graph platform availability, scalability, security, reliability, and performance.
• Administer enterprise knowledge graph solutions supporting healthcare analytics, interoperability, benchmarking, quality reporting, and AI initiatives.
• Develop and optimize SPARQL queries, semantic reasoning performance, indexing strategies, and large-scale graph workloads.
• Implement and maintain backup, recovery, disaster recovery, and business continuity processes.
• Manage RDF, OWL, RDFS, SHACL, and semantic data models representing healthcare concepts, measures, entities, and relationships.
• Collaborate with enterprise architects and data governance teams to design and maintain healthcare ontologies and semantic models.
• Support data virtualization, graph integrations, and semantic interoperability initiatives.
• Partner with Data Engineering and Platform Engineering teams to support enterprise data platforms.
• Integrate Stardog with SQL Server, PostgreSQL, Databricks, cloud storage platforms, APIs, and data integration technologies.
• Develop automation scripts and operational procedures for deployment, monitoring, maintenance, and platform administration.
• Support cloud-native deployments utilizing Kubernetes, Docker, Azure Container Apps, Azure Kubernetes Service (AKS), and related Azure services.
• Monitor platform health, performance, capacity, and operational metrics.
• Perform performance tuning and capacity management for graph database environments.
• Support CI/CD and Infrastructure-as-Code (IaC) practices where appropriate.
• Administer and support platform operations within Linux-based environments using command-line tools.

Skills

Knowledge graph

SPARQL optimization

Semantic modeling

Data governance collaboration

CI/CD and IaC familiarity

Linux command line

Tools

Stardog

SQL Server

PostgreSQL

Databricks

Kubernetes

Docker

Azure Container Apps

Azure Kubernetes Service

Job description

Vizient, Inc. in Edina, MN seeks a Knowledge Graph Engineer to install, configure, and maintain Stardog environments across development, test, and production, ensuring availability, security, and performance.

You will manage RDF/OWL/SHACL models for healthcare concepts and collaborate with governance teams on ontologies, while integrating with SQL Server, PostgreSQL, Databricks, and cloud services in a Kubernetes/Docker based stack.