Senior Knowledge Graph & Stardog Engineer

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

Benefits offered by this job

Incentive eligible

Job summary

Vizient, Inc. is seeking a senior role to manage enterprise knowledge graph platforms. You will install, tune, and maintain Stardog environments, develop SPARQL queries, and ensure performance across dev, test, and production systems.

Collaboration with architects and governance teams is essential for semantic models. The role covers cloud-native deployments, data integrations, and DR capabilities, with a strong BI and healthcare analytics focus.

Qualifications

• Experience building and administering knowledge graph platforms.
• Proficiency with Stardog and SPARQL for large-scale data.
• Hands-on in Linux environments and cloud deployments.
• Strong SQL skills with relational integrations in data platforms.

Responsibilities

• Install, configure, monitor, upgrade, and maintain Stardog environments across dev, test, and prod.
• Ensure knowledge graph platform availability, scalability, security, reliability, and performance.
• Administer enterprise knowledge graphs supporting healthcare analytics, interoperability, and AI initiatives.
• Develop and optimize SPARQL queries, semantic reasoning, indexing, and large-scale graph workloads.
• Implement backup, recovery, DR, and business continuity processes.
• Manage RDF/OWL/RDFS/SHACL and semantic data models for healthcare concepts and relationships.
• Collaborate with architects and data governance to design ontologies and semantic models.
• Support data virtualization, graph integrations, and semantic interoperability initiatives.
• Partner with Data/Platform Engineering to support enterprise data platforms.
• Integrate Stardog with SQL Server, PostgreSQL, Databricks, cloud storage, APIs, and data integration tech.
• Develop automation scripts and operational procedures for deployment, monitoring, and maintenance.
• Support cloud-native deployments using Kubernetes, Docker, AKS, and Azure services.
• Monitor platform health, performance, capacity, and operational metrics.
• Perform performance tuning and capacity management for graph databases.
• Support CI/CD and IaC practices where appropriate.
• Administer and support platform operations within Linux-based environments via CLI.

Skills

Knowledge graphs

Stardog

SPARQL

Graph databases

Cloud & DevOps

Linux

SQL

Azure

Kubernetes

Docker

Tools

SQL Server

PostgreSQL

Databricks

AKS

Azure Container Apps

Docker

Kubernetes

Job description

Vizient, Inc. is seeking a senior role to manage enterprise knowledge graph platforms. You will install, tune, and maintain Stardog environments, develop SPARQL queries, and ensure performance across dev, test, and production systems.

Collaboration with architects and governance teams is essential for semantic models. The role covers cloud-native deployments, data integrations, and DR capabilities, with a strong BI and healthcare analytics focus.