Job Title : Principal AI Architect
The Role
This is a fully hands-on architect role. You'll write production code, design schemas, and build systems alongside the team — not create slide decks. If you haven't coded recently, this role is not a fit.You will lead the RCG implementation track within Pathfinder, design federated knowledge graph architectures for clients, and work directly with the Founder & CEO.
What You'll Do
- Design and implement RCG schemas, ontologies, and KG patterns
- Build production systems using Python, Cypher/Gremlin, LangGraph, and AI tooling
- Develop and operate enterprise-scale knowledge graphs on Neo4j and Amazon Neptune
- Design federated KG architectures for multi-tenant deployments
- Lead technical discussions with client architects and CIOs
- Mentor engineers and contribute to patents, white papers, and product roadmap.
Must-Haves
- 8–12 years in software engineering, including 3–4 years in AI/ML systems
- Actively coding and shipping production systems today
- Deep knowledge graph experience with Neo4j, Neptune, TigerGraph, Cypher/Gremlin/SPARQL
- Strong Python and orchestration framework experience (LangGraph/LangChain)
- Hands-on GraphRAG, ontology-driven reasoning, or KG-augmented retrieval experience
- Daily use of AI coding tools like Claude Code, Cursor, or Copilot
- Experience building enterprise-grade systems with governance, lineage, observability, and multi-tenancy
- Degree in CS, Math, Computational Linguistics, or related field from a top institution.
Preferred
- MS/PhD in graph theory, ML, or knowledge representation
- Open-source contributions or technical publications
- Experience with SAP/ERP data models
- Background in AI-first or product companies
- Strong AWS architecture experience (Bedrock, SageMaker, Neptune, Lambda, IAM).
Not a Fit If
- You're no longer hands-on with coding
- Your KG experience is only academic or experimental
- You rely on broad but shallow tooling knowledge
- You don't actively use AI coding assistants
- You've only worked in research or slide-driven consulting roles.
