Founding Engineer (Applied AI)

polymr • San Francisco, CA

2d • Onsite

About The Position

Polymr is building AI-native procurement software for factories that still manage purchasing through spreadsheets, email attachments, and WhatsApp forwards. The system processes documents such as vendor quotes, purchase orders, invoices, and drawings, reconciles them, and runs procurement workflows while leaving important decisions for human approval.

This is an early founding-engineer role, joining as engineer #3–6. The engineer will own document ingestion and extraction, agentic workflows, and evaluation systems that determine when the software can act autonomously and when it should ask a human. The product is in live use: customers run daily procurement through Polymr, with real-world document variability and edge cases, and feedback cycles measured in days. There is no legacy codebase or committee; what the engineer builds becomes the product.

The work is roughly 80% building and 20% embedded with customers. Engineers speak with operations managers and purchasing heads and may observe users on the factory floor. The team works in person in San Francisco and uses AI coding tools such as Claude Code and Cursor as a daily multiplier. The company says candidates may use AI freely during the build round, while live interview rounds are completed without AI.

Requirements

• Use AI coding tools such as Claude Code and Cursor as a daily multiplier.

Responsibilities

• Own document ingestion and extraction for documents such as vendor quotes, purchase orders, invoices, and drawings.
• Build agentic procurement workflows.
• Build evaluation harnesses that determine when the system acts autonomously and when it asks a human for input.
• Talk with operations managers and purchasing heads who use the product.
• Sometimes observe customers using the product on the factory floor.

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level
• Education Level: No Education Listed