Peraton Labs is seeking a knowledge graph engineer to extend and maintain the knowledge graph that underpins a generative AI-powered analytical platform. This role models entities and their relationships enabling cross-portfolio queries entity linking and relationship-based analytics that connect elements into a navigable knowledge structure.
Key Responsibilities
Design and implement ontologies for various entities
Extend the knowledge graph with entity types and relationship models
Build entity extraction and linking pipelines that populate the knowledge graph from both structured and unstructured sources
Enable cross-portfolio queries
Develop SPARQL query templates and APIs for common analytical patterns
Design the knowledge graph update pipeline for incremental data ingestion
Collaborate with NLP Engineers on entity resolution and with Data Fusion Engineers on relationship validation
#px2026
Qualifications
Required Qualifications
Minimum of 8 years of experience with a Bachelors degree 6 years with a Masters degree or 3 years with a PhD in Computer Science Information Science or related field
3 years of experience with knowledge representation ontology engineering or graph databases
Proficiency with RDF OWL SPARQL and semantic web technologies
Experience with graph databases (Oxigraph Blazegraph Neo4j or similar)
Strong Python proficiency; experience with RDF libraries (rdflib or similar)
Understanding of ontology design patterns and best practices
Experience with entity resolution and knowledge base population
Familiarity with linked data principles and standards
US Citizenship with the ability to obtain/maintain a Secret clearance
Preferred Qualifications
Experience with defense or government ontologies (DoD Architecture Framework NIEM)
Experience with knowledge graph embedding and graph neural networks
Knowledge of provenance tracking and data lineage in knowledge graphs
Peraton Overview
Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the worlds leading mission capability integrator and transformative enterprise IT provider we deliver trusted highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land sea space air and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day our employees do the cant be done by solving the most daunting challenges facing our customers. Visit to learn how were keeping people around the world safe and secure.
Target Salary Range
$104000 - $166000. This represents the typical salary range for this position. Salary is determined by various factors including but not limited to the scope and responsibilities of the position the individuals experience education knowledge skills and competencies as well as geographic location and business and contract considerations. Depending on the position employees may be eligible for overtime shift differential and a discretionary bonus in addition to base pay.
EEO
EEO: Equal opportunity employer including disability and protected veterans or other characteristics protected by law.
Required Experience:
IC
ResponsibilitiesPeraton Labs is seeking a knowledge graph engineer to extend and maintain the knowledge graph that underpins a generative AI-powered analytical platform. This role models entities and their relationships enabling cross-portfolio queries entity linking and relationship-based analytics...
Responsibilities
Peraton Labs is seeking a knowledge graph engineer to extend and maintain the knowledge graph that underpins a generative AI-powered analytical platform. This role models entities and their relationships enabling cross-portfolio queries entity linking and relationship-based analytics that connect elements into a navigable knowledge structure.
Key Responsibilities
Design and implement ontologies for various entities
Extend the knowledge graph with entity types and relationship models
Build entity extraction and linking pipelines that populate the knowledge graph from both structured and unstructured sources
Enable cross-portfolio queries
Develop SPARQL query templates and APIs for common analytical patterns
Design the knowledge graph update pipeline for incremental data ingestion
Collaborate with NLP Engineers on entity resolution and with Data Fusion Engineers on relationship validation
#px2026
Qualifications
Required Qualifications
Minimum of 8 years of experience with a Bachelors degree 6 years with a Masters degree or 3 years with a PhD in Computer Science Information Science or related field
3 years of experience with knowledge representation ontology engineering or graph databases
Proficiency with RDF OWL SPARQL and semantic web technologies
Experience with graph databases (Oxigraph Blazegraph Neo4j or similar)
Strong Python proficiency; experience with RDF libraries (rdflib or similar)
Understanding of ontology design patterns and best practices
Experience with entity resolution and knowledge base population
Familiarity with linked data principles and standards
US Citizenship with the ability to obtain/maintain a Secret clearance
Preferred Qualifications
Experience with defense or government ontologies (DoD Architecture Framework NIEM)
Experience with knowledge graph embedding and graph neural networks
Knowledge of provenance tracking and data lineage in knowledge graphs
Peraton Overview
Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the worlds leading mission capability integrator and transformative enterprise IT provider we deliver trusted highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land sea space air and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day our employees do the cant be done by solving the most daunting challenges facing our customers. Visit to learn how were keeping people around the world safe and secure.
Target Salary Range
$104000 - $166000. This represents the typical salary range for this position. Salary is determined by various factors including but not limited to the scope and responsibilities of the position the individuals experience education knowledge skills and competencies as well as geographic location and business and contract considerations. Depending on the position employees may be eligible for overtime shift differential and a discretionary bonus in addition to base pay.
EEO
EEO: Equal opportunity employer including disability and protected veterans or other characteristics protected by law.
Peraton provides innovative solutions for the most sensitive and critical programs in government today, developed and executed by scientists, engineers, and other experts.
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