Small Signal Processing PCB Design

I'm looking for a skilled PCB designer to create a small (less than 5x5 cm) PCB for signal processing purposes. The board will need to incorporate a microcontroller.

Key Requirements:
- Design a compact PCB for signal processing
- Integrate a microcontroller
- Size constraints: less than 5x5 cm

Ideal Skills and Experience:
- Proficiency in PCB design software
- Experience with microcontroller integration
- Knowledge of signal processing circuits
- Ability to work within size constraints

Please provide samples of previous work and relevant experience.