Senior Knowledge Graph Engineer (AI & Graph Systems)

EcoVadis

Warszawa

Hybrid

PLN 260,000 - 380,000

Full time

3 days ago

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Benefits offered by this job

Hybrid work in Warsaw

Wellness allowance

Professional development

Flexible working hours

Health care options

Employee referral program

Job summary

EcoVadis is seeking a hands-on Senior Knowledge Graph Engineer to operationalize ontology designs into high-throughput graph systems. You will power autonomous AI agents tackling sustainability challenges by linking unstructured disclosures with graph databases and building scalable, multi-hop workflows.

You will work with GraphRAG, NLP pipelines, and SHACL-based data quality tests to ensure reliable, enterprise-grade data. Hybrid in Poland, with remote flexibility.

Qualifications

4+ years in production with graph databases
Strong Python for data pipelines
Experience with NLP frameworks or LLM-based extraction
Knowledge of RDF/OWL/SHACL and SPARQL/Cypher
Cloud experience, preferably Azure

Responsibilities

Design, implement, and maintain high-speed GraphRAG ingestion pipelines
Build entity resolution and deduplication workflows
Federate internal data with external ontologies and registries
Develop NL2Query tools and MCP endpoints for LLM agents
Ensure data quality with SHACL in CI/CD
Optimize multi-hop queries and graph performance

Skills

Graph databases

Python

NLP frameworks

Labeled Property Graphs

Cypher & SPARQL

Education

Degree in Computer Science/Engineering

Tools

Neo4j

Memgraph

TigerGraph

GraphDB/Stardog/Virtuoso

Job description

You will work with GraphRAG, NLP pipelines, and SHACL-based data quality tests to ensure reliable, enterprise-grade data. Hybrid in Poland, with remote flexibility.

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