2D/3D Solar Shadow Analysis Web App

I'm looking for an experienced developer to create a single-page web application based on Google Maps. This app will be used for solar panel shadow analysis.

Key Features:
- User authentication
- Interactive maps for real-time location and dimension retrieval
- Data export options

Solar Panel Data Visualization:
- Heatmap for shadow analysis
- 3D model of Solar Panel and Roof Wall boundary etc with shadows
- Graphs of sun exposure over time

Ideal Skills:
- Proficiency in frontend development
- Experience with Google Maps API
- Strong skills in 2D/3D modeling and data visualization
- Knowledge of user authentication systems

Please provide relevant experience and a portfolio.