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CDS Views — annotations, associations, parameters, table functions, and extensions.
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AMDPs (ABAP Managed Database Procedures), HANA-optimized code pushdown, and performance tuning.
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RESTful ABAP Programming Model (RAP) — managed and unmanaged scenarios, draft handling, business objects.
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SAP Gateway and OData service development (V2 and V4).
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Strong hands-on experience developing custom Fiori applications:
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SAPUI5, Fiori Elements, and the Flexible Programming Model.
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Fiori Launchpad configuration, deployment, and authorizations.
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Fiori app extensions, Smart Templates, and Smart Controls.
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Strong working knowledge of at least one S/4HANA functional area (FI/CO, MM, SD, or PP) from a developer's perspective.
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Proven experience leading client-facing workshops, presenting to senior stakeholders, and producing architecture deliverables.