Sidhanth G.

I build AI systems that reason, not just match vectors. I’m a Senior Ontologist + Graph AI Engineer with 4+ years of production experience building RAG, GraphRAG, AI agents, and semantic knowledge systems with Neo4j, OWL ontologies, and LLMs. I currently work with Fortune 500 clients on enterprise AI and knowledge systems through Fractal Analytics. I’ve also worked with Mercedes-Benz, Philips, and QpiAI on intelligent RAG and knowledge systems. Core expertise: * GraphRAG, RAG & semantic search * Knowledge Graphs, Neo4j & Cypher * Ontology Engineering - OWL, SWRL, SKOS, RDF * Hybrid retrieval, re-ranking & query expansion * LLMs - OpenAI, LLaMA & Gemini * Pydantic & structured LLM outputs * RDF/JSON-LD data transformation * MLOps & production deployment If you’re building AI that needs to understand relationships and reason over knowledge, I can help.