C++ Code Optimization for PCB Application

I'm looking for a C++ expert to optimize the code for a PCB application. The primary goal is to improve its performance, this includes:

- Analyzing the current codebase
- Change code for PCB to perform as required

The ideal freelancer for this project should have:

- Proven experience in C++ programming, specifically with code optimization
- Previous work with PCB applications will be a big plus
- A keen eye for detail and problem-solving skills

Please make sure to include your relevant experience in your proposal.

IMPORTANT!!!!

The Processor to code in this Project is a ATMEGA808-XF IC MCU 8BIT 8KB FLASH 28SSOP!
Please advice in your proposal that you have software available to LIVE (Not static) simulate the functionality of the code.

Please also advice what software you are planning to use to simulate the functionality of the code.