Sr SAP Middleware Support – ECC to S/4HANA Brownfield Migration - Remote

Category: Government/Military Location: Jacksonville Florida United States Sr SAP Middleware Support – ECC to S/4HANA Brownfield Migration - Remote Role Overview The SAP Middleware Support resource will be responsible for the design, remediation, support, and optimization of integration objects across the SAP ECC to S/4HANA brownfield migration landscape. This role will ensure continuity, stability, and performance of all system interfaces throughout migration, testing, cutover, and post-go-live stabilization. The senior consultant with 10-15 years overall experience will work closely with Basis, functional, data, and ABAP teams to support end-to-end integration scenarios and enable seamless interoperability between SAP and non-SAP systems. Key Responsibilities Integration & Middleware Support - Support design, build, and validation of SAP integration objects leveraging: - SAP PI/PO (Process Integration / Process Orchestration) - APIs (REST, SOAP), IDocs, BAPIs - Maintain and support interface mappings, data transformations, and integration logic across ECC and S/4HANA landscapes - Support publish/subscribe and event-driven integration patterns using middleware tools - Assist in defining and executing integration strategy and deployment approach for S/4HANA conversion Migration & Remediation Activities - Assess existing ECC interfaces for S/4HANA compatibility and simplification impacts - Support remediation of obsolete or non-compliant integration objects - Update technical specifications, interface mappings, and transformation logic for S/4HANA readiness - Identify opportunities to optimize or replace legacy integrations with modern API-based approaches - Support third-party system compatibility assessments and interface redesign where required Testing & Cutover Support - Support interface testing across: - System Integration Testing (SIT) - User Acceptance Testing (UAT) - Mock Conversions and Cutover cycles - Troubleshoot and resolve integration defects across environments - Validate end-to-end data integrity and system interactions - Support cutover planning and sequencing for middleware objects Hypercare & Production Support - Provide post-go-live support for integration defects and performance issues - Monitor middleware performance, message queues, and interface failures - Support stabilization and defect triage during hypercare phase Cross-Functional Collaboration - Partner with: - Functional teams to validate business process integration - ABAP developers for custom interface remediation - Data migration teams for data flow consistency - Basis/infrastructure teams for environment and transport management - Support alignment of integration design with overall S/4HANA architecture and data strategy Required Qualifications - 8–10+ years of experience in SAP middleware/integration support roles - Proven experience in SAP ECC → S/4HANA Brownfield migrations - Hands-on experience with: - SAP PI/PO configuration and support - IDocs, BAPIs, RFCs - REST/SOAP APIs and integration frameworks - Strong experience troubleshooting integration objects and resolving interface issues - Understanding of integration patterns (point-to-point, middleware-based, event-driven) - Experience supporting integration testing cycles and migration cutover Preferred / Nice-to-Have Skills - Experience with SAP Integration Suite / CPI - Familiarity with API management and microservices architecture - Experience with middleware performance tuning and monitoring tools - Exposure to SAP modules such as FICO, MM, PP, or StRM in integrated landscapes Bonus / Highly Preferred - Experience with: - iBaseT (MES / MRO integration) - Dassault DELMIA Apriso (Manufacturing Operations Management integration) - Experience integrating SAP with manufacturing/MES systems in aerospace or regulated industries - Knowledge of serialization, shop floor integration, and production dat