I will develop owl ontologies using protégé, rdf and sparql
Ontology Developer, Semantic Web and Knowledge Graphs
About this Gig
Need a well-structured ontology for your research, AI application, healthcare system, or Semantic Web project?
Whether you're building a Knowledge Graph, Semantic Web application, or research ontology, I can transform your domain knowledge into a structured OWL ontology using Protégé and ontology engineering best practices.
I develop accurate, scalable, and reusable ontologies for academic, research, and industry applications with logical consistency and clear documentation.
Services
Custom OWL Ontology Development
Ontology Design & Conceptual Modelling
Protégé Ontology Development
RDF/RDFS Modelling
SPARQL Query Development
Ontology Validation & Reasoning
BFO-based Ontology Design (if required)
Knowledge Graph Foundation
UML, ER & Ontology Visualisation
Tools
Protégé OWL RDF/RDFS SPARQL BFO GraphDB Python (rdflib & Owlready2)
Why Choose Me?
Software Engineer specialising in Ontology Engineering
Research experience in semantic modelling
Clean, maintainable, and well-documented ontologies
Reliable communication and on-time delivery
Please contact me before placing an order so we can discuss your requirements and recommend the most suitable package.
My Portfolio
FAQ
What information do you need before starting an ontology project?
Please provide your project description, domain or use case, required concepts, expected relationships, preferred ontology standard (if any), and any existing documentation, datasets, UML diagrams, or conceptual models. If you're unsure, I can help define the scope before we begin.
Which ontology technologies and tools do you use?
I primarily work with Protégé, OWL, RDF/RDFS, SPARQL, BFO (when required), GraphDB, and Python libraries such as rdflib and Owlready2.
Can you develop domain-specific ontologies?
Yes. I can develop ontologies for healthcare, education, business, e-commerce, research, AI applications, Semantic Web projects, and other custom domains.
Can you modify or extend an existing ontology?
Absolutely. I can analyse, improve, debug, restructure, or extend existing ontologies while maintaining logical consistency and compatibility with your project requirements.
Do you provide SPARQL queries and reasoning support?
Yes. I can create custom SPARQL queries for your ontology and assist with ontology validation, reasoning, and consistency checking where required.
Do you work on academic as well as commercial projects?
Yes. I work with students, researchers, universities, startups, and businesses. Every project receives the same level of attention and professional documentation.
Should I contact you before placing an order?
Yes. Every ontology project is unique. Please message me first so we can discuss your requirements, recommend the appropriate package, and avoid misunderstandings.
5 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
N nilusrubanathan

Canada
Thank you for you excellent quality and quick delivery. Wish you all the best! Your work is exceptional and thorough.
Up to $50
Price
1 day
Duration
Helpful?J joudsui

Saudi Arabia
She was extremely helpful, responsive, and understanding. She explained things clearly, answered all my questions patiently, and supported me throughout the coding process. Her help made a big difference in completing my project successfully.
Up to $50
Price
5 days
Duration
Helpful?R robpatty30

Poland
Very professional and knowledgeable. Will definitely continue to work with Maria :)
Up to $50
Price
6 days
Duration
Helpful?U umarmemon114

Australia
Excellent work! You delivered exactly what I needed, and even ahead of schedule. Your professionalism, attention to detail, and clear communication made the process smooth and efficient. Highly recommended
Up to $50
Price
4 days
Duration
Helpful?I idrisoum

Morocco
I had the pleasure of working with Maria on ontology development and Python-related tasks, and I was thoroughly impressed by her expertise and professionalism. She demonstrated deep knowledge in ontology structuring, semantic modeling, and Python programming, providing clear and efficient solutions tailored...
Up to $50
Price
4 days
Duration
Helpful?
5 reviews for this Gig
| (5) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
N nilusrubanathan

Canada
Thank you for you excellent quality and quick delivery. Wish you all the best! Your work is exceptional and thorough.
Up to $50
Price
1 day
Duration
Helpful?J joudsui

Saudi Arabia
She was extremely helpful, responsive, and understanding. She explained things clearly, answered all my questions patiently, and supported me throughout the coding process. Her help made a big difference in completing my project successfully.
Up to $50
Price
5 days
Duration
Helpful?R robpatty30

Poland
Very professional and knowledgeable. Will definitely continue to work with Maria :)
Up to $50
Price
6 days
Duration
Helpful?U umarmemon114

Australia
Excellent work! You delivered exactly what I needed, and even ahead of schedule. Your professionalism, attention to detail, and clear communication made the process smooth and efficient. Highly recommended
Up to $50
Price
4 days
Duration
Helpful?I idrisoum

Morocco
I had the pleasure of working with Maria on ontology development and Python-related tasks, and I was thoroughly impressed by her expertise and professionalism. She demonstrated deep knowledge in ontology structuring, semantic modeling, and Python programming, providing clear and efficient solutions tailored...
Up to $50
Price
4 days
Duration
Helpful?

