Full-Stack AI Engineer for Invoice & Financial Document Processing SaaS

We are looking for an experienced Full-Stack AI Engineer based in Europe (or aligned European time zones) to build and integrate an advanced Agentic AI document processing module into our existing SaaS platform. Unlike traditional hardcoded extraction scripts that break on messy layouts, our system relies on Agentic workflows (utilizing frameworks like LangGraph or custom tool-use loops) to autonomously classify documents, handle multi-step extractions, cross-verify line items, self-correct low-confidence fields, and route exceptions intelligently. The platform processes commercial invoices, receipts, and structured financial forms under strict European data compliance standards (GDPR). We need a dedicated professional to take ownership of this fixed-scope feature milestone, ensuring secure API handling, high-performance asynchronous processing, and robust agentic orchestration.