Flutter App 2D Garden Layout Integration

I'm seeking a proficient Flame Engine developer who can skillfully integrate a 2D interactive garden layout into my existing Flutter app. In this garden layout, both plants and objects are draggable.

Key aspects of the project include:
- Implementing specific rules for the draggable items
- Ensuring smooth functionality and user experience

The specific rules for the draggable plants and objects encompass:
- Collision detection
- Snap-to-grid
- Restricted area placement
- Overlap
- Spacing

The ideal candidate for this project should have:
- Extensive experience in Flutter and Flame Engine
- Strong understanding of implementing interactive elements
- Ability to ensure a seamless user experience.