Data Science / Knowledge Graph Engineer

We are seeking a skilled Data Science / Knowledge Graph Engineer with hands-on experience in semantic modeling, knowledge graphs, graph databases, and data transformation. The ideal candidate will have experience working with platforms such as Stardog, Neo4j, GraphDB, or similar technologies, along with strong SQL and data analysis skills. The role will focus on understanding domain data and business relationships, designing semantic models and ontologies, building and maintaining knowledge graphs, and developing graph-based data solutions. The resource will collaborate closely with data engineers, architects, domain teams, and AI engineers. Key Responsibilities

• Understand domain data and business relationships.
• Design semantic models and ontologies.
• Build and maintain knowledge graphs.
• Create source-to-graph mappings and hydrate graphs with data.
• Develop RDF, OWL, SHACL, and SPARQL queries.
• Validate data quality and troubleshoot graph-related issues.
• Perform data transformation and mapping activities required for graph solutions.
• Work with data engineers, architects, domain teams, and AI engineers to support knowledge graph initiatives.
• Analyze data and ensure the quality and consistency of graph-related data.
• Support the development and maintenance of semantic data models and knowledge graph solutions.

• Hands-on experience with Stardog, Neo4j, GraphDB, or similar graph database/platform technologies.
• Strong knowledge of semantic modeling.
• Strong understanding of knowledge graphs.
• Experience with RDF.
• Experience with SPARQL.
• Experience with semantic models and ontologies.
• Experience with data transformation, mapping, and graph hydration.
• Strong SQL skills.
• Strong data analysis skills.
• Experience validating data quality and troubleshooting graph-related issues.

Preferred Experience

• Experience with Azure Databricks or similar data platforms.
• Experience working with data engineering teams and enterprise data platforms.
• Experience collaborating with AI engineers and architecture teams.

Leidos

• Chicago, IL

• $92,300-166,850 per year Description About Leidos Leidos is a Fortune 500 company aimed at embracing and solving some of the world’s most pressing challenges. Through science and technology, Get fam…, About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst…

• 19 days ago