numerical analysis and optimization programming refactoring project

I am looking for an experienced professional to perform a numerical analysis and optimization programming refactoring project, specifically in the c or c++ language. The desired outcome is an intermediate level of optimization. Additionally, the project requires structural refactoring. The most suitable candidate must be well-versed in numerical analysis, optimization and refactoring in the c or c++ language. This project is expected to significantly improve the performance of the existing code.

all the details about the project are inside the Docs file.