Applied AI Engineer - Knowledge Graph & GraphRAG

Adverant Limited; Dublin; Hybrid; EUR 70,000 - 110,000; Full time

Job summary

Adverant Limited is building the heart of Nexus—our knowledge graph, ontology builder and GraphRAG retrieval—so every AI answer has full contextual sources across a company's knowledge base.

You will work across the stack from contract-to-facts graph creation to delivering model inputs with source attachments, shaping how information is retrieved and interpreted for trustworthy results.

Qualifications

• Production experience with retrieval, search or knowledge graphs.
• Strong Python, and comfort with a typed language.
• Experience evaluating language models on real tasks.
• A habit of checking results against what people actually need.
• Clear writing about trade-offs.

Responsibilities

• Improve extraction, entity resolution and the way facts keep their sources.
• Build and tune GraphRAG retrieval, including community summaries for broad questions.
• Make the ontology builder easier for domain experts to use.
• Measure quality with real test sets, and publish what you find internally.
• Work with industry leads to model new domains.

Skills

Retrieval systems

Knowledge graphs

Python

Typed languages

LM evaluation

Trade-off writing

Tools

Graph databases

Ontologies

Document parsing

Job description

Adverant Limited is building the heart of Nexus—our knowledge graph, ontology builder and GraphRAG retrieval—so every AI answer has full contextual sources across a company's knowledge base.

You will work across the stack from contract-to-facts graph creation to delivering model inputs with source attachments, shaping how information is retrieved and interpreted for trustworthy results.