Senior SAP ABAP Developer (Digital Manufacturing Integration) Role Summary Client is seeking an experienced Senior SAP S4 HANA ABAP Developer with MII & ME experience to help implementation project in US & Mexico into the global client instance of SAP ECC/HANA. Location: Remote / Global Travel might be Required Job Title: Senior SAP ABAP Developer (Digital Manufacturing Integration) Location: Remote / Global Travel Required Experience Level: 8–12+ Years Job Summary We are seeking a Senior SAP ABAP Developer to support the global upgrade and implementation of our digital manufacturing platform (SAP MII/ME). In this role, you will be the core backend developer responsible for building and optimizing the ERP-side interfaces, custom extensions, and cloud-readiness strategies required to fuel our shop-floor systems. Working with a premier Aerospace & Defense client, you will leverage current ECC instances and they transition to S/4HANA and SAP BTP (Business Technology Platform) to ensure seamless, high-performance, and secure data exchange between the enterprise core and MII/ME layers. Core Responsibilities ECC & S/4HANA Core & Integration Development: Develop, optimize, and maintain modern interfaces utilizing OData services, CDS Views, and AMDP (ABAP Managed Database Procedures) to connect S/4HANA with SAP MII and SAP ME. SAP BTP Extension & Integration: Design and build clean-core extensions, APIs, and integration flows on SAP BTP to orchestrate data between S/4HANA and shop-floor solutions. ERP Custom Enhancement: Create custom ABAP objects, User Exits, BADIs, and Enhancement Spots within core S/4HANA manufacturing modules (PP, QM, MM, PM) using RAP (ABAP RESTful Application Programming Model) or modern extensibility frameworks. Performance Tuning: Troubleshoot, profile, and optimize complex ABAP code and S/4HANA database queries to handle high-volume, real-time data transmissions without latency. A&D Regulatory Adherence: Ensure all custom code, BTP applications, and data structures strictly comply with defense-specific compliance mandates, including ITAR data segregation and secure cloud standards. Technical Collaboration: Partner closely with the Lead Functional Consultant and Principal SAP MII/ME Architect to translate technical specifications into secure, scalable S/4HANA and BTP solutions. Technical Qualifications ABAP on ECC & S/4HANA migration Expertise: 8–12+ years of advanced SAP ABAP programming experience, with minimum 1-2 projects (3+ years) of hands-on experience migrating & developing natively inside an SAP S/4HANA environment. SAP BTP Proficiency: Practical experience with SAP BTP services (such as SAP Integration Suite, Extension Suite, or BTP ABAP Environment) to develop side-by-side or decoupled extensions. Modern SAP Development Stack: Deep expertise in building CDS Views, OData services, AMDP, and applying SAP's "Clean Core" development principles. Manufacturing Module Knowledge: Deep technical understanding of the underlying database tables and logic inside S/4HANA PP (Production Planning), QM (Quality Management), and MM (Materials Management). Shop-Floor Context: Prior experience developing code specifically designed to interact with Manufacturing Execution Systems (MES) or SAP MII/ME layers (excluding SCADA). Soft Skills & Compliance Strong analytical skills with a precise attention to detail required for the highly regulated A&D industry. Collaborative mindset with the ability to work effectively across global, distributed technical teams. Due to ITAR regulations and defense contract restrictions, US Citizenship or specific regional security clearances may be required. Requirements