Vijay Pal Vishwakarma

Python

From 48 Hours to 6 Minutes: My Journey Optimizing a Pandas Reconciliation Process for Large-Scale Data

Introduction I recently went through a wild but rewarding ride optimizing a heavy pandas-based reconciliation workflow. What started as a slow, clunky piece of code eating up over 48 hours, ended up getting polished into a lean, mean 6-minutes machine. I wanted to share my story - not as a tutorial, but as a real-world case study from...

10-Jul-2025