Knowledge Graph Lead & Backend Engineer

Accenture; Saint Petersburg (FL); Hybrid; USD 90,000 - 180,000; Full time

Job summary

Accenture is seeking a Back-End Engineer to design, build, and operate data infrastructure powering an AI-driven knowledge platform. You will architect APIs, build data pipelines, manage multi-modal databases, and own reliability and performance of services used by product teams.

You will have strong fundamentals, capable of relational schema design, graph queries, vector stores, and REST APIs. Experience in knowledge graphs and semantic tech is central, spanning ingestion, transformation,

Qualifications

• Minimum 5 years of Knowledge Graph data hydration and ontology-based mapping.
• Strong RDF, SPARQL and semantic technologies expertise.
• Experience with mapping frameworks (R2RML) and graph databases.
• Proficiency in relational databases and vector stores.

Responsibilities

• Hydrate structured and semi-structured data into Knowledge Graphs by mapping source data to ontology models.
• 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 efficient graph hydration and ETL workflows.
• Deploy, configure, and maintain vector database infrastructure for embedding storage, indexing, and semantic retrieval at scale.
• Design and maintain scalable graph query APIs consumed by internal application and product teams.
• Performance-tune graph database queries, indexing strategies, 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 to support Knowledge Graph implementations.

Skills

Knowledge Graph

SPARQL

Python

Java

SQL

REST APIs

Education

Bachelor's degree or equivalent

Associate’s Degree

Tools

GraphDB

Stardog

Neo4j

PostgreSQL

MySQL

SQL Server

Pinecone

Weaviate

Milvus

Qdrant

Docker

Kubernetes

Airflow

NiFi

Job description

Accenture is seeking a Back-End Engineer to design, build, and operate data infrastructure powering an AI-driven knowledge platform. You will architect APIs, build data pipelines, manage multi-modal databases, and own reliability and performance of services used by product teams.

You will have strong fundamentals, capable of relational schema design, graph queries, vector stores, and REST APIs. Experience in knowledge graphs and semantic tech is central, spanning ingestion, transformation,