Remote Senior Knowledge Graph Engineer — AI Pipelines

EcoVadis SAS; Barcelona; Híbrido; EUR 90.000 - 120.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Wellness allowance

Learning & development

Sustainability events

Employee resource groups

Remote work from abroad policy

Meals and Transportation Vouchers

Life & Accident Insurance + Private HI

Paid moving day

Community service day + personal day

Summer hours (36h/week)

Hybrid monthly allowance

Descripción de la vacante

EcoVadis is seeking a hands-on Senior Knowledge Graph Engineer to operationalize ontologies into high-throughput graph systems. You will work on GraphRAG, entity resolution, and semantic federation, powering autonomous AI agents solving sustainability challenges.

Location: Hybrid in Barcelona with remote options from Spain. Strong emphasis on Cypher, SPARQL, and NLP for data extraction and integration.

Formación

• Degree in Computer Science or related technical discipline.
• 4+ years of production experience with graph databases and data pipelines.
• Strong experience with cloud platforms, preferably Azure.
• Proficiency in Python for building scalable data pipelines.
• Experience with NLP frameworks and LLM-based extraction.
• Knowledge of semantic web standards and graph schemas.

Responsabilidades

• Design and maintain high-speed GraphRAG ingestion pipelines.
• Build entity resolution workflows to unify graph nodes.
• Implement ETL/ELT to federate internal data with external ontologies.
• Develop low-latency GraphRAG retrieval layers and NL2Query tools.
• Operationalize SHACL tests within CI/CD pipelines.
• Optimize multi-hop queries and graph indexing for scale.

Conocimientos

Entity resolution workflows

Data pipeline design

Cypher queries

SPARQL queries

Model Context Protocol

NLP Frameworks

LangChain

LlamaIndex

spaCy

Python programming

Azure cloud technologies

Graph data modeling

Educación

Degree in Computer Science or related field

Herramientas

Neo4j

Memgraph

TigerGraph

GraphDB

Stardog

Virtuoso

RDF

RDFS/OWL

SHACL

SPARQL

Cypher

dbt

Qdrant

Pinecone

pgvector

AzureML

Kubernetes

Descripción del empleo

EcoVadis is seeking a hands-on Senior Knowledge Graph Engineer to operationalize ontologies into high-throughput graph systems. You will work on GraphRAG, entity resolution, and semantic federation, powering autonomous AI agents solving sustainability challenges.

Location: Hybrid in Barcelona with remote options from Spain. Strong emphasis on Cypher, SPARQL, and NLP for data extraction and integration.