Senior Full-Stack Engineer — AI Data Pipeline + PWA (B2B SaaS Platform, UAE Market)

OVERVIEW: We are building a B2B SaaS platform for licensed professionals in the UAE. The platform ingests structured and unstructured data files from multiple enterprise sources daily, normalises them using AI into a unified database, and serves results via a natural language search interface. We cannot share further details about the industry or use case until an NDA is signed. This is intentional and non-negotiable. THE CORE TECHNICAL CHALLENGE: We receive files daily from 30+ enterprise data sources. Every source uses a different file format and column naming convention. We need a system that: - Automatically ingests files from a monitored email inbox - Uses an LLM to identify and normalise column names into a canonical schema — without any hard-coded rules - Adapts automatically when source file formats change - Makes all data searchable via natural language queries - Serves results in under 2 seconds TECH STACK: Backend: FastAPI (Python) or Node.js Database: PostgreSQL + pgvector Frontend: Next.js + Tailwind CSS (PWA) AI: OpenAI GPT-4o or Anthropic Claude Sonnet Storage: AWS S3 Hosting: Vercel + AWS