Worked on the game-by-virtuals/game-python repository to address a critical backend issue affecting API reliability and payload integrity. Focused on Python-based API integration and backend development, the work involved fixing the nesting of the 'data' field in v2 POST endpoints to ensure correct JSON structure. This targeted bug fix aligned payload handling with established API contracts, reducing server-side processing errors and runtime issues for client integrations. The approach emphasized low-risk, maintainable changes using Python and Git, resulting in improved stability and fewer incidents related to payload parsing. The work demonstrated depth in backend troubleshooting and precise API contract enforcement.