Project Overview We are building a custom software system for a Flexible Intermediate Bulk Container (FIBC) manufacturing company. The goal is to create a production planning and operations management platform that connects marketing, planning, production, logistics, and management teams. The system will manage customer orders, container planning, production scheduling, production tracking, inventory, and dispatch operations. This is not a simple website. It is a manufacturing ERP-style system. A working prototype already exists and we want to continue expanding and improving it. Current Technology Stack Backend Python (FastAPI) Frontend React.js Tailwind CSS Database MongoDB Authentication JWT-based role access The system is also built as a Progressive Web App (PWA) so it can run on desktop and mobile devices. Manufacturing Process the Software Must Support Tape Production Weaving (Looms) Lamination Cutting Printing Stitching Baffle Inspection Packing The ERP must support stage-wise production tracking across these departments. Main Modules of the System Authentication & User Roles Master Data Management Customer Order Management Container / Shipment Planning Production Planning (Backward Scheduling) Production Execution Tracking Inventory Management Quality Control Dispatch Management Barcode / Shopfloor Integration Dashboard & Analytics Data Management & Backup Production planning is based on weight capacity (KG) and uses backward scheduling from dispatch dates. Key System Features Production planning based on factory capacity Bag difficulty rating affecting production speed Container composition planning Pallet calculation Shift-based production logging Operator performance tracking Mobile / tablet production entry Excel import and export tools Management dashboards Barcode tracking integration Existing Work A working system already exists with the following features: Order management Container planning Production planning Capacity dashboard Production logging The system currently uses FastAPI + React + MongoDB. The architecture now needs to be improved and expanded into a complete manufacturing system. What We Need From the Developer Continue development of the system Improve backend architecture and modular structure Build additional ERP modules Improve database design Testing and debugging Improve UI where needed Ensure stability and scalability Ideal Developer Skills Strong Python backend experience FastAPI / Django / Flask React.js frontend development Database architecture and API design Experience building complex applications Bonus experience: Manufacturing software ERP systems Supply chain or logistics platforms Production planning systems Development Approach We are open to AI-assisted development where useful, but the developer must still understand system architecture, debugging, and testing. This project requires structured engineering and long-term development. Project Type This is a long-term project. Future development phases include: Inventory management Quality control modules Dispatch and logistics modules Advanced analytics and reporting Deliverables Clean modular backend architecture Stable production-ready application Documented APIs Well-structured database design Tested and reliable features How to Apply Please include: Your experience with Python backend frameworks Examples of complex systems you have built Any experience with ERP, manufacturing, or logistics software Your approach to building scalable backend systems