Senior ReactJS + FastAPI Developer Needed for Solar Shading Analysis Platform

We are looking for an experienced Full Stack Developer (or small team) to build a web-based Solar Shading Analysis and 3D Visualization Platform similar to Arka360, Aurora Solar, or OpenSolar. The application will allow users to visualize rooftop solar installations in a 3D environment, simulate sun movement throughout the year, analyze shading impacts from nearby structures, calculate irradiance and energy production, and display financial metrics such as savings, ROI, and payback period. Technology Stack - ReactJS (TypeScript) - FastAPI (Python) - PostgreSQL - Redis - Three.js / React Three Fiber - Docker Key Features - Interactive 3D rooftop and solar design visualization - Sun path simulation (date and time based) - Real-time shading analysis - Irradiance heatmap visualization - Solar energy production calculations - Financial analysis dashboard - Project and design management - User authentication and role-based access - REST APIs with Swagger documentation Requirements - Strong experience with ReactJS and FastAPI - Experience with Three.js/WebGL or similar 3D technologies - Experience building GIS, CAD, mapping, or simulation-based applications is a plus - Ability to build scalable, production-ready software Deliverables - Complete source code - Database schema - API documentation - Docker deployment setup - Testing and deployment documentation Please share examples of similar projects, especially involving: - 3D Visualization - Mapping/GIS Systems - Simulation Software - Solar or Energy Applications Include your proposed architecture, estimated timeline, and budget in your application.