I'm looking for a senior Odoo 18 POS developer who has real experience with the new POS framework (OWL2) and payment integrations. The goal is to build a clean, stable, commercial-grade module that adds MercadoPago QR as a new payment method inside the POS. Requirements: - Strong experience with Odoo 16, 17 or 18 POS - Deep knowledge of OWL2 components and POS screen extensions - Experience integrating payment gateways (MercadoPago, Stripe, etc) - Clean Python code for backend logic - Ability to implement Webhooks for real-time payment updates - No core modifications, only proper extension patterns - Ability to package the module professionally for production - Good communication and daily updates Module must include: - MercadoPago QR generation via API - Custom POS payment screen (OWL2) - Real-time status sync (webhook + polling fallback) - Automatic order validation when payment is approved - Accounting integration (pos.payment and account.move) - Admin configuration for credentials - Short technical documentation - A simple demo video of the payment flow - Bug fixes for 15 days after delivery Looking for someone who can start immediately and deliver professional quality.