Knowledge Graph Data Engineer: Hybrid Retrieval & Graph Pipelines

Bespoketechnologies; Reston (VA); On-site; USD 140,000 - 190,000; Full time

Job summary

Bespoketechnologies is seeking a highly experienced Knowledge Graph Data Engineer in Reston, VA, to build data and retrieval foundations for a Graph RAG application. You will ingrain data provenance, graph modeling, and embedding pipelines across multiple sources, enabling robust retrieval APIs and MCP tools.

The role emphasizes handling complex, inconsistent data, implementing hybrid retrieval, and collaborating with application engineers to convert use cases into scalable graph solutions.

Qualifications

• Strong CS fundamentals, data structures, algorithms, software design, testing.
• Proficiency in Python and building maintainable data pipelines or backend services.
• Cloud fundamentals including compute, storage, networking, security, deployment.
• Hands-on experience with property graph modeling, queries, traversals, graph algorithms.
• Experience with embeddings, vector indexes, and semantic or hybrid search.
• Understanding of retrieval-augmented generation and evaluation of retrieved context.
• Ability to work with inconsistent or incomplete data and communicate decisions clearly.

Responsibilities

• Build Python pipelines to ingest, clean, chunk, enrich, and index data.
• Model entities and relationships in a property graph with provenance.
• Develop entity extraction and resolution workflows across sources.
• Build embedding pipelines and maintain vector indexes for semantic search.
• Implement hybrid retrieval combining vector search, keyword search, graph traversal, and queries.
• Develop and integrate MCP servers/tools exposing vector search to a LangGraph agent.
• Integrate Oracle MCP server for agent data querying.
• Apply graph algorithms to identify connections and improve retrieval.
• Collaborate with engineers and stakeholders to translate use cases into graph models and workflows.

Skills

Python

Graph data modeling

Vector search

Embedding workflows

Retrieval-augmented generation

Data pipelines

Software design

Education

Bachelor's Degree in engineering, Math or computer science

Master’s degree preferred

Tools

OCI / Oracle Cloud Infrastructure

Oracle Database

Oracle Property Graph

LangGraph

MCP servers/tools

CI/CD

Job description

Bespoketechnologies is seeking a highly experienced Knowledge Graph Data Engineer in Reston, VA, to build data and retrieval foundations for a Graph RAG application. You will ingrain data provenance, graph modeling, and embedding pipelines across multiple sources, enabling robust retrieval APIs and MCP tools.

The role emphasizes handling complex, inconsistent data, implementing hybrid retrieval, and collaborating with application engineers to convert use cases into scalable graph solutions.