SAP ABAP Developer (MES) Integration

SAP ABAP Developer – Manufacturing Execution Systems (MES) Integration We are seeking a mid-to-senior SAP ABAP Developer with hands-on Manufacturing Execution System (MES) integration experience to develop and support interface flows connecting SAP ECC / S/4HANA to our plant shop-floor systems. In this role, you will work within an agile development team to build, test, and maintain integrations synchronizing production orders, BOMs/routings, material staging, yield confirmations, inventory backflushes, and defect records between SAP PP/QM and MES platforms. <>Key Responsibilities Integration Development: Build and maintain bi-directional interfaces between SAP (ECC/S/4HANA) and shop-floor MES platforms (such as SAP DMC, SAP MII, Apriso, Rockwell FactoryTalk, Siemens Opcenter). Order & Master Data Dispatch: Develop and maintain outbound services (IDocs/ALE, RFCs, BAPIs, or OData) to transmit production orders, operational steps, batch information, and material reservations to the manufacturing floor. Confirmations & Backflushing: Write inbound RFCs, BAPI wrappers, and APIs to process floor confirmations, machine run times, scrap recording, and automated material consumption (Movement Types 261/101). ABAP Enhancements & Error Handling: Implement BAdIs, user exits, and custom enhancement points; develop error logging and monitoring routines to resolve queue stalls (tRFC/qRFC) and COGI backflush issues. Testing & Plant Support: Partner with PP/QM functional analysts and shop-floor IT teams during unit testing, integration testing, and hypercare support. <>Required Skills & Qualifications Citizenship / Work Authorization: U.S. Citizenship Required. Experience: 12+ years of hands-on SAP ABAP development, including direct experience working on MES or shop-floor integration projects. Core ABAP: Strong working knowledge of Object-Oriented ABAP, BAPIs, RFCs, BAdIs, and transactional debugging. Data Integration: Hands-on experience developing with at least one integration approach: IDocs (LOIPRO, LOIOPS, MATMAS) & ALE configuration RFC / BAPI interface development OData services / REST APIs SAP MII, SAP PCo, or middleware connectivity (CPI / PI / PO) Functional Familiarity: Basic understanding of SAP Production Planning (PP or PP-PI), Quality Management (QM), and Inventory Management (MM-IM).