What You'll Do - Data mapping & transformation analysis — compare legacy source fields against SAP S/4HANA data structures (tables, CDS views, data dictionary); identify gaps, misalignments, and required transformations; produce field-level mapping workbooks, data dictionaries, and IRIS-to-SAP-style crosswalks. - API & integration design — design, configure, and validate integrations against SAP S/4HANA APIs (OData/REST), SAP BTP / Integration Suite, and SAP data lake / Datasphere; support the move from flat-file patterns to modern, secure API-based solutions, including data-contract validation and environment readiness.