You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Nathan Dumont-ServantND

Nathan Dumont-Servant

PMO IT Transformation & ERP (S/4HANA)

€650/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Nathan

PMO Lead with over 5 years of experience in high-stakes IT programs (up to €20M), I work in complex environments combining ERP transformation (SAP S/4HANA), carve-outs, and international transverse management.

I support general management, IT departments, and business units on critical topics:

• IT & ERP Program Management (SAP S/4HANA – Finance, P2P, O2C)
• Executive Governance (COMEX, Steering Committees, IT Department) & Strategic Reporting
• Budget Management (CAPEX/OPEX) and Program Staffing (40+ resources)
• TSA Management (RUN / BUILD / EXIT) in carve-out contexts
• Transverse IT / Finance / Business Coordination and Flow Security
• Management of Critical Phases: scoping, testing (SIT/UAT), cutover & go-live
• Supplier Management & Contracting (IT Consulting Firms, IT Partners)
• Process Structuring & Change Management

I have supported leading groups such as LVMH (Paris Match), VINCI Energies, Crédit Agricole, Africa Global Logistics, in high-visibility transformation contexts.

📩 Available to discuss your needs:
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Fluent

Can work on-site
Paris (up to 50km)

Experience

  • Paris Match
    PMO Lead
    PRESS AND MEDIA
    February 2025 - Today (1 year and 4 months)
    Paris, France
    Project: IT and ERP transformation program post carve-out (~€20M) with migration of Finance and Procure-to-Pay processes to SAP S/4HANA, after the acquisition of Paris Match by the LVMH Group.

    • Supervision of an annual IT budget of €6M, management of 2 PMOs, and global staffing oversight (40+ resources) in an ERP transformation context.
    • Transverse management of end-to-end business processes (Procure-to-Pay, Finance) and contribution to flow migration (Yooz SAP S/4HANA), with coordination between Finance / Management Control. Structuring of Order-to-Cash processes for the launch of a digital marketplace (sale of assets: photos, content), including scoping customer journeys (ordering, invoicing) and alignment with SAP ERP flows.
    • Participation in upstream phases (business workshops, target process scoping) and management of SAP testing (SIT, UAT, end-to-end) on critical flows (invoicing, allocations, orders). Preparation and securing of go-live (cutover, readiness, risk management) and post go-live hypercare monitoring (incidents, fixes, support coordination).
    • IT / Finance Interface: management of OPEX/CAPEX commitments, control of allocations, and securing financial flows in SAP, coordination of interfaces and integrations.
    • Facilitation of program governance (COMEX / IT Department / TSA) and monitoring of risks and dependencies.
    PMO SAP esker Service Now Budget Management & CAPEX/OPEX Control
  • Africa Global Logistics
    PMO
    TRANSPORTATION
    February 2024 - Today (2 years and 4 months)
    Puteaux, France
    Project: International IT carve-out program (49 countries, 14,000 users, 500+ applications) involving system and data separation, data cleansing, and IT transition management.

    • Management of RUN TSA governance (SteerCo, COMOP) with tracking of decisions, risks, and inter-application dependencies, and transverse coordination of IT, Cloud, local operations, and service provider teams in an international multi-application environment.
    • Supervision of service continuity (ServiceNow, SLA), management of escalations, and establishment of crisis management teams (Business / IT / COMEX) within a structured contractual framework.
    • Management of TSA EXIT transitions (cutover) with milestone planning, securing technical dependencies, and team coordination in an IT transformation context. Management of data cleansing projects in a regulated entity separation context, structuring a data quality process (cleansing, validation, milestone tracking) in preparation for system transitions (data migration logic).
    • Management of financial audit follow-up (DBGT terminal – India) with transverse coordination, consolidation of deliverables, and securing contractual compliance.
    • Contribution to the carve-in of the DBGT terminal (India) by aligning with group IT standards and harmonizing IT practices with the IT department.
    Transverse Coordination Project Management Data Migration SLA Mergers & Acquisitions
  • ENEDIS
    AMOA
    ENERGY AND UTILITIES
    June 2023 - December 2023 (6 months)
    Nanterre, France
    Project: Tender and structuring of Purchasing and Finance processes in a SAP ERP environment, as part of the Linky Pro testing campaigns (+35M users).

    • Writing of specifications, organization of award juries, and budget management for campaigns (Excel, Power BI), with tracking of commitments and variance analysis.
    • Gathering and formalization of business needs (IT, Finance, Purchasing) and translation into functional specifications in a SAP ERP environment.
    • Contribution to the structuring and evolution of Procure-to-Pay (P2P) processes in SAP (MM / FI): analysis of quotes, creation and tracking of purchase requisitions, securing commitments. Facilitation of business workshops and participation in the implementation of validation workflows (quotes, purchase requisitions: roles, thresholds, circuits, traceability).
    • Contribution to aligning business processes with SAP flows (purchasing, validation, payment) for internal control and financial security purposes.
    • Supervision of over 110 testing campaigns with IT / Business / Purchasing coordination.
    SAP Workflow Atlassian JIRA RFI/RFP Workshop Facilitation

Recommendations

EM
Cyril BouskilaCB
Elias M. and 1 other person have recommended Nathan

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • MSc in Data Analytics & Artificial Intelligence
    EDHEC
    2022
  • Economics and Commerce preparatory class, Scientific track (CPGE ECS)
    Stanislas, Paris
    2019

Skill set

Categories

  • Other