Radio Device Prototype Development

I'm seeking an experienced electrical engineer to create a proof of concept for a radio device prototype.

Essential Requirements:
- Development of a working prototype
- Use of microcontroller as an essential component

Ideal Skills and Experience:
- Proficiency in embedded systems
- Experience with microcontroller-based designs
- Strong background in prototype development and testing
- Ability to document the process and provide detailed reports

Please provide samples of previous work with your bids.