United Kingdom - London
Posted: 19/10/2026
Knowledge Graph / Ontology Engineer
Location: UK (Remote)
Day Rate: £450 per day outside IR35
I am looking for an experienced Knowledge Graph / Ontology Engineer to support the development and delivery of enterprise Knowledge Graph and semantic data capabilities.
This is a hands-on role requiring a strong combination of ontology development, semantic technologies and data engineering, with the ability to take a Knowledge Graph requirement and translate it into a practical, scalable solution.
You will work closely with Enterprise Architecture and wider technical teams, helping to build semantic data layers that bring together structured and unstructured enterprise information and make it accessible through both traditional and natural-language querying.
- Design, develop and implement Knowledge Graphs and ontologies
- Build and evolve enterprise semantic data layers
- Integrate structured and unstructured data from multiple enterprise sources
- Develop solutions using RDF, OWL, SPARQL and Semantic Web technologies
- Create semantic, reusable and queryable data products
- Develop approaches for querying and navigating enterprise Knowledge Graphs
- Support natural-language querying across enterprise data and Knowledge Graphs
- Apply strong data integration and engineering principles throughout the Knowledge Graph build
- Work closely with Enterprise Architecture teams to translate architectural direction into working solutions
- Clearly communicate technical approaches, design decisions and delivery plans to a range of stakeholders
Skills & Experience:
I am looking for someone with demonstrable experience across:
- Knowledge Graph development and implementation
- Ontology development and semantic modelling
- RDF, OWL and SPARQL
- Semantic Web technologies
- Structured and unstructured data integration
- Data integration and engineering
- Semantic and queryable data products
- Working collaboratively with Enterprise Architecture teams
Knowledge Graph Engineer (Ontology) London, GB
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Knowledge Graph Engineer (Ontology) in London employer: TechNET IT Recruitment Ltd
As a leading energy organisation, we pride ourselves on fostering a dynamic work culture that values innovation and collaboration. Our London-based team enjoys a flexible work arrangement with three days onsite and two days remote, alongside opportunities for professional growth through cutting-edge projects in data engineering. Join us to be part of a forward-thinking environment where your expertise in Power BI and Azure can truly make an impact.
Contact Details:
TechNET IT Recruitment Ltd Recruitment Team
