Blue Signal Search · 6 days ago
Senior Knowledge Graph Engineer
California, United States
Full-time
Onsite
Senior Level, Lead/Staff
$235K/yr - $275K/yr
10+ years expBlue Signal Search is a stealth-mode, venture-backed AI company in the built-world space, and they are seeking a Senior Knowledge Graph Engineer. The role involves owning all graph-related technical aspects, from schema evolution to production query performance, while transforming multimodal data into powerful knowledge flows.
RecruitingStaffing Agency
No H1B
Hiring Manager
Brent Stokes
Responsibilities
Architect, implement, and harden the company’s core knowledge graph, including node and relationship design, ingestion pipelines, and entity resolution
Build and tune graph-data infrastructure that scales across millions of construction drawings, images, and text documents while supporting low-latency traversal and reasoning
Marry graph search with vector embeddings and retrieval-augmented generation pipelines, enabling agents to answer complex domain questions in seconds
Define and monitor metrics for ingestion speed, query performance, and recommendation accuracy, feeding the results into an internal EVAL framework for continuous improvement
Partner daily with ML, computer-vision, and product teams to translate real construction workflows into graph models the platform can reason over
Mentor fellow engineers on graph best practices and represent the graph pillar in client demos and investor milestones
Qualification
Required
10+ years designing and operating production knowledge graphs or large-scale graph databases (Neo4j, TigerGraph, JanusGraph, AWS Neptune, etc.)
Fluency in Python, Java, or Scala and deep knowledge of Cypher, Gremlin, or similar query languages
A track record of integrating graph data with LLM embeddings, vector search, or Graph-RAG style solutions
Experience ingesting heterogeneous data (documents, 2-D/3-D drawings, images) and performing entity linking at scale
Comfort thriving in an early-stage, high-ownership startup: shipping quickly, wearing multiple hats, and joining client calls when needed
U.S. citizenship or permanent residency (TN visas also welcome)
Preferred
Prior exposure to construction tech, AEC workflows, or industrial AI
Computer-vision or 2-D → 3-D imaging experience
Multilingual data pipelines and ontologies
Benefits
Meaningful employee-equity allocation.
Full medical, dental, vision, and an annual learning stipend.
Company
Blue Signal Search
Blue Signal is a nationwide recruiting, executive search, and staffing firm built on a foundation of helping others, doing the right thing, and being excellent.
51-200 employees
Funding
Current Stage
Growth StageLeadership Team
Matt Walsh
Chief Executive Officer & Founder
Joe Horvath
Chief Financial Officer
Company data provided by crunchbase