Knowledge Graph Engineer

At Madiff, we connect top IT talent with cutting-edge companies through remote Agile teams and nearshore outsourcing. With operations in Poland, Portugal, France, and the UK, we specialize in AI, DevOps, and Cybersecurity - supporting industries like Telecom, Banking, and Hi-Tech.

Are you passionate about semantic intelligence and building systems that truly understand business context? We are currently looking for a Knowledge Graph Engineer to join an enterprise-scale initiative in the consulting and financial services industry, focused on powering an advanced Copilot through a high-precision semantic knowledge layer.

Key responsibilities

• Design and maintain ontologies and semantic models for banking and advisory domains

• Build and maintain ETL pipelines feeding graph structures from enterprise data platforms

• Define graph nodes, relationships, metadata rules and reasoning layers to ensure precise retrieval

• Optimize graph performance, indexing strategies and query efficiency at scale

• Implement data quality and consistency controls across knowledge graph structures

• Collaborate closely with data engineers, Copilot engineers and business domain experts

• Integrate knowledge graphs with Copilot retrieval flows and agent reasoning logic

• Continuously evolve the semantic model to reflect real organizational processes

What we are looking for

• 4+ of experience in semantic modelling, ontology design or knowledge representation

• Hands-on experience with graph databases and graph-based retrieval patterns

• Strong engineering background in ETL development and data transformation

• Proven ability to translate complex business domains into formalized graph structures

• Experience with technologies such as Neo4j, GraphRAG, RDF-based systems

• Practical knowledge of Microsoft Fabric, Spark and modern ETL tooling

• Programming skills in Python or TypeScript

• Familiarity with vector-enabled retrieval and hybrid search approaches

• Experience working with Azure-based data services

• Strong communication skills and confidence working with business stakeholders

What we offer

• Fully remote cooperation from Poland

• Opportunity to work on a high-impact enterprise Copilot and large-scale knowledge platform

• Collaboration with experienced data, AI and domain experts

• Long-term project with strong technical and business exposure