Worked on the charmplusplus/charm repository to address a critical bug in the Charm++ runtime, focusing on the PupPerPlaceData component. The solution involved refining the logic for object sizing during data unpacking, ensuring that group and node tables are initialized correctly by calculating the number of objects from the maximum group index encountered. This adjustment prevents mis-sizing issues that could compromise runtime reliability. The work demonstrated strong skills in C++ core development, data serialization, and parallel computing, with careful attention to debugging and adherence to contribution standards. All changes were tracked through Git, supporting maintainable and traceable code improvements.