Job Description
Position 6 : Ontology - Knowledge Graph Specialist
Job ID : 173863
Rate : 80/hr
Location : Southlake, Texas 700092
Client : Telecommunication
Hybrid/Onsite : Hybrid ( 2 days at customer location )
Job Summary We are seeking a hands-on Ontology / Knowledge Graph Engineer to design, build, and maintain enterprise knowledge models supporting network automation, semantic search, and AI/agentic use cases. The ideal candidate combines strong RDF/OWL and graph engineering skills with practical experience converting complex, real-world data into well-defined, validated semantic models.
Key Responsibilities
Design and evolve enterprise ontologies using RDF, RDFS, OWL, Turtle (TTL), and SHACL.
Develop class/property hierarchies, relationships, taxonomies, namespaces, constraints, and reusable ontology patterns.
Apply both schema-first and schema-late modeling approaches, including reverse-engineering models from existing data.
Profile and model large, complex datasets from Excel/CSV, CIQ, configuration, inventory/CMDB, JSON, and relational sources.
Define atomic vs. derived attributes, cross-field relationships, deterministic derivation rules, and validation rules.
Develop SPARQL 1.1 queries, competency questions, graph traversals, dependency/impact queries, and semantic validation.
Build and maintain ontology ingestion, transformation, validation, and testing pipelines using Python.
Work with RDF graph databases such as GraphDB/Stardog and understand Labeled Property Graph (LPG) technologies such as Neo4j.
Support Ontology-RAG / GraphRAG / hybrid graph + vector retrieval and integration of knowledge graphs with AI agents.
Partner with network/domain SMEs to translate implicit business and engineering knowledge into explicit, testable models.
Maintain ontology artifacts, specifications, mappings, and validation rules in Git/CI-CD.
Required Skills & Experience
Strong hands-on experience with RDF, RDFS, OWL, TTL, SHACL, SPARQL, and Semantic Web technologies.
Practical knowledge of knowledge graphs, graph traversal, RDF stores, LPGs, and graph validation.
Experience with schema-first and schema-late ontology development.
Strong data modeling and reverse-engineering skills, including working with messy or incomplete source data.
Experience with JSON Schema, relational data modeling, and mapping between relational/JSON and graph models.
Numbers & Facts
| Location | Southlake, TX |
| Industry | Computer Software |
| Company Size | 20 to 49 employees |
| Year Founded | 2014 |
| Website | http://www.tekfortune.com/ |
About Company
Tekfortune is a software solutions company providing project development and staff augmentation services to companies in various industries including Healthcare, Banking, Finance, Telecommunication and Aviation.
Tekfortune Inc delivers solutions to a wide variety of organizations of various sizes and industries. Our clients include mid-market to Fortune 1000 companies spanning across industries such as: Insurance, Financial, Pharmaceutical, Manufacturing, Retail and many others.
In Tekfortune Inc, we are offering selection of services and solutions at very reasonable rates. With years of experience in the placement and recruitment Industry and over time we have acquired the knowledge essential to comprehend the exact need and dependence on customers. Therefore we provide the customers the best and also the brightest candidates for vacancies. Moreover, by understanding the working interest of customers who is able to place them within the companies where they are able to get maximum opportunity for professional growth.
Tekfortune Inc has a strong emphasis on quality. Its goal would be to achieve client satisfaction by looking into making deliveries satisfaction of customer's business needs. Our ability to quickly identify and effectively employ proven fundamental principles, techniques and resources yields highly desirable results for our clients.
We understand that each industry and organization share a level of uniqueness that requires a tailored approach in order to deliver specific solutions. Such factors as client culture, industry regulations, organizational maturity, financial health and many more items may impact our approach to delivering client solutions.
Having served a wide variety of clients has provided Tekfortune the ability to build subject matter expertise across numerous industries. Our industry expertise combined with our specialized knowledge of Business Process Improvement, Requirements Management and Program & Project Management provides a powerful combination and a tremendous value to our clients.
We are run by a group of industry experts who have decades of experience in delivering custom solutions to our clients.
Tekfortune Inc delivers solutions to a wide variety of organizations of various sizes and industries. Our clients include mid-market to Fortune 1000 companies spanning across industries such as: Insurance, Financial, Pharmaceutical, Manufacturing, Retail and many others.
In Tekfortune Inc, we are offering selection of services and solutions at very reasonable rates. With years of experience in the placement and recruitment Industry and over time we have acquired the knowledge essential to comprehend the exact need and dependence on customers. Therefore we provide the customers the best and also the brightest candidates for vacancies. Moreover, by understanding the working interest of customers who is able to place them within the companies where they are able to get maximum opportunity for professional growth.
Tekfortune Inc has a strong emphasis on quality. Its goal would be to achieve client satisfaction by looking into making deliveries satisfaction of customer's business needs. Our ability to quickly identify and effectively employ proven fundamental principles, techniques and resources yields highly desirable results for our clients.
We understand that each industry and organization share a level of uniqueness that requires a tailored approach in order to deliver specific solutions. Such factors as client culture, industry regulations, organizational maturity, financial health and many more items may impact our approach to delivering client solutions.
Having served a wide variety of clients has provided Tekfortune the ability to build subject matter expertise across numerous industries. Our industry expertise combined with our specialized knowledge of Business Process Improvement, Requirements Management and Program & Project Management provides a powerful combination and a tremendous value to our clients.
We are run by a group of industry experts who have decades of experience in delivering custom solutions to our clients.
Skills
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