Chaitanya Vemulakonda developed advanced geospatial and data validation features across the apache/sedona and great-expectations/great_expectations repositories over a two-month period. Leveraging Python and strong data structures knowledge, Chaitanya enhanced data validation feedback by surfacing unexpected index column names, improving data integrity checks. In Sedona, Chaitanya implemented geometry utilities for GeoSeries, including convex hull, minimum bounding circle and radius, and 2D enforcement, addressing core geospatial analysis needs. The work culminated in a 2D-to-3D geometry conversion method, laying the foundation for 3D GIS workflows. All features were delivered with clear commit history and robust unit testing, demonstrating technical depth and reliability.