In November 2025, Alex Roberts focused on enhancing the E3SM-Project/E3SM repository by addressing a critical bug related to freshwater density constants in wave-atmosphere calculations. Using Fortran and applying expertise in numerical methods and scientific computing, Alex centralized the reference for freshwater density constants, ensuring all modules used a shared, consistent value. This update improved numerical accuracy and reduced ambiguity in the model, directly supporting future maintainability and reliability for wave-atmosphere coupling. The work demonstrated a strong command of HPC software engineering practices and Git workflows, resulting in a more robust and maintainable codebase for ongoing scientific modeling efforts.