Sushil Likhite developed end-to-end accreditation overview APIs for organizational data within the DEFRA/epr-prn-common-backend and DEFRA/epr-prn-rep-exp-facade repositories. He designed new endpoints with C# and SQL, applying AutoMapper for DTO transformations and FluentValidation for input integrity. His work included updating service and client interfaces, enhancing test data management, and refining repository logic by removing unnecessary includes to improve maintainability. Through comprehensive integration and unit testing, Sushil ensured consistent API exposure and reliable data filtering by organization. This enabled improved data visibility and streamlined integration across backend and facade components, reflecting a focused and methodical engineering approach.