Kali Singh worked on backend performance optimization for the openMF/fineract repository, focusing on improving classification retrieval. During this period, Kali identified and removed a redundant database query within the classification retrieval flow, which reduced unnecessary database load and improved response times for this feature. The solution was implemented in Java, leveraging backend development and database optimization skills to ensure the change was isolated and did not introduce regressions. By targeting a specific inefficiency, Kali enhanced the scalability of the system for larger datasets. The work demonstrated a focused approach to incremental improvement within a complex backend codebase.