Matthieu BUFFET

Mission: Architectural lead for the ERP & ITSM platform of one of the world’s largest humanitarian organizations, ensuring stability, compliance, and scalability for mission-critical Finance, HR, and Logistics operations. Key Responsibilities & Achievements: Designed & implemented the ServiceNow platform on-premises (ITSM, ITOM, CSM, CSDM) to support internal & external service operations Defined and automated the full installation & upgrade process for ServiceNow to ensure repeatability, cost efficiency, and reduced downtime Managed the ERP platform architecture with 30+ critical applications (Finance, Logistics, HR) while ensuring full compliance with external audits Led the implementation of ServiceNow CSM for external support management, ITSM for Incident/Request/Change processes, and initiated the CSDM framework Delivered tangible operational impact: - Reduced incident ticket volume by 50% - Decreased resolution time by 30% - Maintained 100% SLA compliance for payroll, supplier invoice payments, and audit reporting Participated in RFP evaluations & vendor selection for Finance, Logistics, and HR domains, aligning technical choices with strategic objectives Ensured budget & timeline adherence for all ERP/ITSM technical projects, despite a complex and compliance-driven environment Technologies & Scope: PeopleSoft Financials | ServiceNow ITSM, CSM, CSDM | SQLServer | MariaDB | Hybrid infrastructure | IT Governance | Audit & Compliance Architecte ERP & ITSM senior, responsable de la conception et de la mise en œuvre de la plateforme ERP et ServiceNow pour une organisation internationale, incluant +30 applications financières, logistiques et RH. Réduction de 50% des tickets d’incident, respect des SLA critiques (paye, factures, audits), mise en place de ServiceNow on-premise (ITSM, ITOM, CSM, CSDM) avec automatisation complète des processus techniques d’installation et d’upgrade.

Manage and ensure company commitment to clients Establish internal reporting tools and methods (Budget, schedule, testing, documentation, after-sales services). Project management and PMO for internal project manager

Structure and ensure customer fulfillment and establish internal reporting tools and methods (Budget, schedule, testing, documentation, after-sales services). Act as SPOC between the York development team and the French customers. Grow billable services to € 90 k (from 0) in 6 months. Manage 3 direct reports.

Project Management (SNCF, Bureau Veritas, Pindar) PeopleSoft Expert Database Management ITIL consultant

Mission: Provided expert architecture and technical consulting for Oracle’s enterprise clients on PeopleSoft and middleware platforms, ensuring reliable ERP operations, smooth upgrades, and optimized integration in complex IT landscapes. Key Responsibilities & Achievements: - Defined and implemented ERP architecture blueprints for PeopleSoft environments (versions 8.8, 8.9, 9) across multiple industries (Finance, Transport, Manufacturing) - Led production operations and provided expert support for business-critical ERP and middleware environments, ensuring high availability and performance - Installed and configured Oracle & middleware products (WebSphere, WebLogic, Tuxedo, Oracle 10g/9i, DB2 v7) on UNIX, Windows, z/OS, USS - Designed and deployed technical upgrade environments to streamline PeopleSoft version migrations - Delivered personalized architecture & administration training for client technical teams - Resolved complex integration incidents involving ERP, middleware, and database layers - Contributed to ERP performance tuning & optimization, ensuring SLA compliance in production Technologies & Scope: PeopleSoft 8.8/8.9/9 | Oracle 10g/9i | WebSphere | WebLogic | Tuxedo | DB2 v7 | UNIX / Windows / z/OS Architecte technique ERP & middleware, en charge de la définition d’architectures PeopleSoft et middleware (WebSphere, WebLogic, Tuxedo) pour les clients grands comptes d’Oracle. Mise en place d’environnements de montée de version, optimisation de la performance ERP, formation et accompagnement des équipes techniques.

Pilotage de l’industrialisation de projet – Suivi de l’avancement, suivi du budget, gestion d’une petite équipe technique au sein d’un projet de 30 à 100 personnes. Administration des environnements, pilotage de l’intégration technique du progiciel et des tests de performances, gestion du processus de livraison, suivi des cases techniques avec PeopleSoft, mise en place de la surveillance et des sauvegardes, migration technique des PeopleTools, résolution des incidents niveau 2 sur les environnements de Production. Environnement : UNIX/AIX, Windows 2000, z/OS, USS Produits: WebSphere – HTTPServer – Tuxedo – DB2v7 – PeopleSoft 8.8 - OPC - $Universe Industrialisateur UNIX/ORACLE Installation et paramétrage des environnements, mise en place des sauvegardes et de la surveillance, rend l’application exploitable. Environnement : UNIX/HP Oracle 8i, Webmethods, WebSphere 4 EE, $Universe