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Youssef HammouYH

Youssef Hammou

SAP Chief Architect - Technical Lead - Expert

1 200 €/jour
Paris, FR
15 ans et +

Délai de réponse moyen : 1h

À propos de Youssef

Executive SAP Leader with 20 years of experience driving large-scale SAP transformations across international groups.

Recognized for bridging Business Strategy, Enterprise Architecture, and SAP Innovation, with strong expertise in:
•SAP S/4HANA (Private & Public Cloud – RISE with SAP)
•SAP BTP & Cloud-Native Extensions
•Clean Core Governance & Design Authority
•Enterprise Integration & API Strategy
•SAP Security & GRC
•Retail & Finance Core Model Deployment

Trusted advisor to CIOs, CTOs, and executive boards for complex architecture decisions, modernization programs, and scalable SaaS-based SAP ecosystems.
  • Français

    Bilingue ou natif

  • Anglais

    Bilingue ou natif

  • Arabe

    Bilingue ou natif

  • Espagnol

    Capacité professionnelle limitée

Accepte de travailler sur site
Paris (jusqu’à 50 km), Toulouse (jusqu’à 50 km), Nice (jusqu’à 50 km)

Expériences

  • LVMH
    Senior SAP BTP / FIORI Business Analyst
    octobre 2025 - Aujourd'hui (8 mois)
    • o Program APOLLO - SQUAD COSMO : S/4HANA 2023 On-Premise implementation project - SAP BTP (Build Work Zone & Integration Suite) - Clean Core
    • o Contributed to a strategic S/4HANA implementation program, integrating SAP BTP within an Agile governance framework (squad-based delivery model).
    • o Led high-impact Finance workshops with strong strategic focus (feasibility assessment, target design, key solution arbitrations), leveraging deep expertise in SAP Fiori & SAP BTP
    • o Performed high-level and detailed scoping of business requirements, formalized and secured functional specifications while ensuring cross-stream consistency and impact control
    • o Actively contributed to the design, optimization, and evolution of end-to-end business processes (P2P, R2R, Controlling)
    • o Contributed to application architecture decisions around SAP BTP (Build Work Zone & Integration Suite), ensuring alignment with S/4HANA standards and target architecture
    • o Led roles and authorization governance: managed business profiles and maintained the authorization matrix across S/4HANA and BTP (IAS), ensuring security and compliance
    • o Executed and secured SIT test cycles with a risk-mitigation and quality-driven delivery approach
    • o Provided advanced techno-functional support during UAT phases, acting as a strategic interface between Finance and IT
    • o Conducted in-depth analysis of business requirements and complex defects (root cause analysis), implementing structured remediation plans
    • o Served as techno-functional lead and co-responsible of delivery for the offshore development team based on Philippines
    • o Coordinated cross-functional collaboration between local and international teams, ensuring solution consistency, performance, and adherence to project commitments
  • MBDA
    SAP trainer - SAP BTP
    juillet 2025 - septembre 2025 (2 mois)
    Delivered training and expertise sessions on SAP Business Technology Platform services and architecture within MBDA's enterprise landscape. Core areas of expertise
    SAP BTP
  • ANTARIA LUXEMBOURG
    SAP Chief Architect - Genesis project
    novembre 2024 - octobre 2025 (11 mois)
    • o Implementation of a SAAS solution based on a S/4HANA 2023 and SAP BTP solutions
    • o Define and implement the necessary hardware infrastructures for internal and external application services for Antaria group entities and clients.
    • o Define and implement the network requirements essential for the proper communication of internal and external systems.
    • o Define and implement various levels of security (Network, Application, etc.) as well as relevant security standards to ensure full compliance with data protection and regulatory requirements applicable to Antaria's technological services for its group entities and clients.
    • o Define and implement deployment strategies for the Genesis solution across the various retail outlets within the Antaria network.
    • o Contribute to the innovation stream of Antaria's technological products for group entities and clients.
    • o Perform technical tasks related to infrastructure (Basis), network, and backend/frontend/integration developments on SAP S/4HANA and SAP BTP.
    • o Support the implementation and monitoring of best practices across all assigned areas of responsibility.
    • o SAP Clean Core implementation :
    ◦ • Defined Design Authority standards to control custom code growth
    ◦ • Promoted side-by-side extensions on SAP BTP using CAP, Integration Suite, Event Mesh
    ◦ • Initiated governance for reusable, upgrade-friendly developments and integration
    • o Participate in the operation and maintenance of Antaria's software products for its group entities and clients.
    • o Contribute to the selection of the best international supplier partnerships for hardware and technology services provided by Antaria to its group entities and clients.
    • o Support the establishment of any organizational structure necessary for the operation of Antaria's technology services and projects, in the context of continuous arbitration between internalization and externalization at the international level (nearshoring, offshoring).
    SAP BTP SAP S/4HANA SAP FIORI SAP développement SAP HANA

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