SAP ABAP S/4HANA Technical Architect

Title: SAP ABAP S/4HANA Technical Architect Location: Long Beach, CA Remote with occasional travel (Preferred local or nearby local resource) Duration: Long Term Contract Note: Need Local to CA only Key Responsibilities • Define and lead the end-to-end technical architecture for SAP ECC to S/4HANA migration. • Assess and recommend appropriate migration approaches, including system conversion, selective migration and integration architecture across S/4 and enterprise platforms. • Lead and interpret outputs from SAP Readiness Check, custom code impact analysis, and simplification item reviews. • Guide and oversee custom code adaptation and technical remediation for S/4HANA compatibility. • Develop and execute data archiving and data volume management strategies to reduce system footprint prior to migration. • Collaborate closely with functional teams, SAP Basis, infrastructure, security, and external system integrators. • Ensure system performance, stability, compliance, and data integrity throughout the migration lifecycle. • Provide hands-on technical guidance and best practices during sandbox, development, quality, and production phases. • Support governance, risk management, and decision-making related to technical scope, sequencing, and dependencies. • Act as a trusted technical advisor to program leadership throughout the S/4HANA transformation by developing, reviewing, and approving key design deliverables (architecture diagrams, KDDs, technical design standards) Required Skills & Experience • Proven hands-on experience delivering SAP S/4HANA brownfield and/or landscape transformation projects. • Demonstrated experience as a Technical Architect on ECC to S/4HANA migration initiatives. • Deep understanding of S/4HANA technical architecture, including data model changes, simplification items, and compatibility scope • Proven experience with system landscape transformation and phased migration approaches • Experience with SAP Data Archiving • Experience supporting ECC to S/4HANA system conversion or selective data migration approaches. • Strong knowledge of custom code adaptation and remediation (SPAU/SPDD, ABAP Test Cockpit, Custom Code Migration tools) • Deep experience designing and governing integration architecture between S/4HANA and enterprise platforms • Experience aligning S/4 integration with platform-based / enterprise architecture • Solid understanding of SAP Basis, system sizing, performance tuning, and overall landscape architecture. • Ability to work cross-functionally and communicate complex technical topics clearly to both technical and business stakeholders.