Founding AI Engineer

Vision pipelines that segment rooms, walls, and architectural elements from noisy PDFs/CAD files

LLM + RAG workflows that interpret building codes and produce compliant designs

Full-stack features across our React/Node/Postgres platform

Typescript / React / Node / Express / PostgreSQL

Python (PyTorch, NumPy, etc.)

Vision models : object detection, instance + semantic segmentation

AI Agents: multi-agent reasoning, workflow orchestration, MCP

RAG pipelines : vector DBs, embeddings, chunking strategies

Have strong experience in ML (vision AND LLMs), backend, building AI agents, and full-stack engineering

Thrive in fast-moving environments and love shipping end-to-end

Care about building reliable, production-grade AI systems

Want to be early at a YC startup where your work directly defines the company’s trajectory

You’ll work directly with the founding team (YC F25)

Ship real AI systems into production for companies across the U.S.

Own major pieces of the product and architecture

Help shape the engineering culture from day zero

Build something that will become the industry standard for top quality commercial building design