n8n Developer – WhatsApp OCR Chatbot for Quote Price Verification (Cameroon Market)

Job Details

Description

Summary We're building a WhatsApp-based chatbot that lets users submit a photo or PDF of a construction quote (BTP, electrical, plumbing works — Cameroon market) and receive a price verification report comparing it to a local reference price database, segmented by geographic zone. Core scope: - WhatsApp Business API integration (existing account, access will be provided) - OCR + parsing of quote line items (item description, quantity, unit price) - Fuzzy matching engine against a reference price database (PostgreSQL) - Monetbil payment webhook integration (Orange Money / MTN MoMo, signature verification required) - n8n workflows orchestrating the entire flow (existing n8n instance on Railway, access will be provided) Deliverables expected: - Fully documented n8n workflows (JSON export + explanation of each node) - PostgreSQL schema deployed with migration script - Working, tested Monetbil webhook integration (test then production) - Technical documentation: architecture, environment variables, deployment and rollback procedure A full written specification (cahier des charges) is ready and will be shared with shortlisted candidates. Looking for someone with proven n8n workflow experience, WhatsApp Business API experience, and ideally exposure to African mobile money payment gateways (Monetbil, CinetPay, Flutterwave). Please share relevant past work in your proposal, and answer the screening questions below.

Skills

API Bot Development Chatbot Development Automation JavaScript Data Scraping +1

Notification History

Channel	Type	Status	Sent	Error
telegram	pre_ai_job_alert	sent	Mon, Jul 13, 2026 10:17 AM	-

User Actions

Action	Acted at
No actions.