Worked on the FESOM/fesom2 repository, focusing on targeted improvements to scientific modeling workflows using Fortran. Over two months, addressed a critical parameter-passing bug in the icepack initialization process, ensuring required data was correctly provided and preventing runtime errors during simulation startup. Additionally, enhanced the cavity heat model by refining the water flux calculation to incorporate mean freshwater density, improving the accuracy of heat-water interactions. Emphasized code maintainability and traceability by delivering focused, auditable commits. Demonstrated expertise in Fortran programming, numerical modeling, and scientific computing, contributing depth through precise, high-impact changes that improved simulation reliability and model fidelity.