Developed a hydrophobicity profiling system for peptides within the OpenMS/OpenMS repository, focusing on robust and accurate peptide hydrophobicity analysis. The work centered on implementing the HydrophobicityProfile class and extending the residue class with a getHydrophobicity function, enabling both windowed profiling and hydrophobic moment calculations. Using C++ and emphasizing software development best practices, the developer improved performance through runtime optimizations and refactored code for maintainability, including the transition from map structures to lookup tables. Comprehensive documentation and unit testing were provided, along with enhanced exception handling and corrections to hydrophobicity scale inaccuracies, resulting in a more reliable and maintainable codebase.