Job Title: SAP S/4HANA Conversion Technical Architect (Brownfield)Work Mode: RemoteExperience: 10-15yrsJob Type: Contractual (6-12months) Job OverviewWe are seeking an experienced SAP S/4HANA Technical Architect to lead the technical strategy and execution for our SAP ECC to S/4HANA migration. This is a pivotal role responsible for defining the architectural foundation, guiding migration decisions, and ensuring the technical success of our brownfield conversion program.The ideal candidate will combine hands-on migration expertise, deep architectural insight, and strong collaboration skills to drive a seamless transformation across systems, teams, and business units. Key Responsibilities<ul><li>Define and lead the end-to-end technical architecture for the ECC to S/4HANA migration.</li><li>Assess and recommend migration approaches, including system conversion, selective data transitions, and integration strategies across the enterprise landscape.</li><li>Lead and interpret results from SAP Readiness Check, custom code impact analysis, and simplification item evaluations.</li><li>Oversee custom code remediatiobn and adaptation for S/4HANA compatibility (SPAU/SPDD, ATC, Custom Code Migration tools).</li><li>Design and implement data archiving and volume management strategies to optimize system readiness before conversion.</li><li>Collaborate closely with functional, Basis, security, infrastructure, and SI partners to ensure cohesive execution.</li><li>Safeguard system performance, stability, data integrity, and compliance during all migration phases.</li><li>Provide hands-on technical leadership across sandbox, development, QA, and production environments.</li><li>Support technical governance, risk management, sequencing, and dependency resolution throughout the program.</li><li>Act as a trusted advisor to program leadership, contributing to key design deliverables such as architecture diagrams, KDDs, and technical standards.</li></ul> Required Skills &amp; Experience<ul><li>Demonstrated success delivering SAP S/4HANA brownfield or landscape transformation projects.</li><li>Proven experience as a Technical Architect on ECC-to-S/4HANA conversion initiatives.</li><li>In-depth understanding of S/4HANA architecture, including data model changes, simplification items, and compatibility scope.</li><li>Strong knowledge of system landscape transformation, phased migration, and selective data transition methodologies.</li><li>Hands-on experience with SAP Data Archiving and data reduction strategies.</li><li>Expertise in custom code adaptation and remediation for S/4 readiness.</li><li>Advanced experience designing and governing integration architectures between S/4HANA and enterprise platforms.</li><li>Strong alignment with enterprise and platform-based architecture principles.</li><li>Solid understanding of SAP Basis, system sizing, performance tuning, and technical operations.</li><li>Exceptional communication and cross-functional collaboration skills, with the ability to translate complex technical topics for business stakeholders.</li></ul>