🚀 Développeur Full-Stack – Interface de Chiffrage BTP avec IA & Automatisation

We are looking for an experienced Full-Stack Developer with expertise in automation, AI, and business application development to build an application designed for construction companies and BTP/construction agencies. 🎯 Project Objective We want to develop a construction estimating interface that allows a company to enter project information and automatically receive a detailed cost estimate and professional quote. The goal is to significantly reduce the time required to perform manual construction cost estimates. 🏗️ Desired Functionality Users should be able to enter or import project information such as: - Project type - Surface area / dimensions - Type of work - Required materials - Quantities - Labor - Material costs - Additional expenses - Desired profit margin The system should then automatically process this information and generate: - 🧮 The overall project cost estimate - 📋 Detailed materials and quantities - 👷 Estimated labor costs - 💰 Total project cost - 📈 Estimated profit margin - 📄 Automatically generated professional quotation - 📊 Financial project summary 🤖 AI & Automation We want to integrate AI to make the estimating process faster and easier for users. For example: Project Data → AI Analysis → Automatic Calculations → Cost Estimate → Quotation AI could be used to: - Analyze the information provided - Identify work items - Suggest required materials - Estimate quantities - Automatically structure the cost estimate - Detect inconsistencies in the data - Generate the content of the quotation ⚠️ Financial calculations must remain reliable, transparent, and controllable. They must be based on predefined rules and data rather than relying solely on AI. 🖥️ Interface We want a professional, modern, and easy-to-use interface. The application should include: - Dashboard - New project creation - Project information form - Cost estimating interface - Materials and quantities table - Cost calculations - Profit margin calculations - Automatic quotation generation - Estimation history - PDF export The interface must be suitable for professional use by construction companies. 🛠️ Required Skills We are looking for a developer with strong knowledge of: - React / Next.js - TypeScript - Node.js or Python - PostgreSQL / SQL - REST APIs - AI API integration (OpenAI or equivalent) - Automation with n8n or similar technologies - PDF document generation - Dashboard development - Web application deployment Experience in construction, cost estimating, quotations, accounting, or construction management software would be a strong advantage. ⭐ Ideal Candidate We are not simply looking for a developer who can build a good-looking interface. We need someone who can understand the business logic behind construction cost estimating and turn that logic into a functional application. You should be able to advise us on: - Technical architecture - Data structure - Calculation methods - AI integration - Automation workflows - Quotation generation - Data security and reliability 📦 Initial MVP For the first version, we want to develop an MVP that allows users to: 1. Create a project 2. Enter project characteristics 3. Define materials and quantities 4. Automatically calculate costs 5. Add labor and additional expenses 6. Calculate the profit margin 7. Automatically generate a quotation 8. Export the quotation as a PDF AI features and advanced automation can then be progressively developed and integrated. 📩 How to Apply Please include the following in your proposal: - Your experience developing business applications - 2–3 similar projects you have built - Your experience with AI and automation - Your experience in construction or construction estimating software, if applicable - The technologies you recommend for this project - Your estimated timeline for developing the MVP - Your hourly rate or estimated project cost We are ideally looking for a freelancer interested in a long-term collaboration and continued development of the application.