Backend Engineer: Knowledge Graph & AI Data Platform

Accenture; Beaverton (OR); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Accenture seeks a Back-End Engineer to design, build, and operate data infrastructure powering an AI-driven knowledge platform. You will work across the full back-end stack, architecting APIs, building data pipelines, managing multi-modal database systems, and owning the reliability and performance of services relied on by product teams.

This hybrid role requires hands-on experience with knowledge graphs, RDF/SPARQL, vector stores, and scalable data services, plus strong coding fundamentals and

Qualifications

• 3+ years in Knowledge Graph data hydration and ontology-based mapping.
• 3+ years with graph databases (Neo4J, StarDog, GraphWise) and Elasticsearch/OpenSearch.
• 3+ years Python or Java and REST API design.
• Bachelor's degree or 12 years equivalent work experience.

Responsibilities

• Hydrate data into Knowledge Graphs by mapping source data to ontologies.
• Develop data mapping and transformation workflows using R2RML or similar technologies.
• Write and optimize SPARQL queries for graph loading, validation, and retrieval.
• Build and maintain data ingestion pipelines and integrate data from enterprise systems.
• Design and optimize relational database schemas and queries to support graph hydration and ETL.
• Deploy, configure, and maintain vector database infrastructure for embedding storage and retrieval.
• Design and maintain scalable graph query APIs for internal teams.
• Performance-tune graph queries and data access patterns.
• Own containerization, deployment, and monitoring of graph services in cloud environments.
• Ensure data quality, ontology alignment, and secure handling of sensitive data (PII/PHI).
• Collaborate with ontologists, architects, and application teams.

Skills

Knowledge Graph data hydration

Ontology-based data mapping

SPARQL

Python/Java

REST APIs

Data pipelines

Education

Bachelor's degree or equivalent

Tools

R2RML

Neo4J

Elasticsearch/OpenSearch

PostgreSQL/MySQL/SQL Server

Pinecone/Weaviate/Milvus/Qdrant

Job description

Accenture seeks a Back-End Engineer to design, build, and operate data infrastructure powering an AI-driven knowledge platform. You will work across the full back-end stack, architecting APIs, building data pipelines, managing multi-modal database systems, and owning the reliability and performance of services relied on by product teams.

This hybrid role requires hands-on experience with knowledge graphs, RDF/SPARQL, vector stores, and scalable data services, plus strong coding fundamentals and