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Ariane RebellacAR

Ariane Rebellac

Supermalter

Chief Financial Officer

€900/day
3 projects
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Ariane

During my years as Chief Financial Officer, I have acquired solid expertise in financial management, human resources management, and leadership. In a restructuring context, I have led large-scale organizational projects and implemented continuous improvement strategies.
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Fluent

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

Experience

  • Entité ENGIE - Services B2B et B2C
    Chief Financial Officer Europe & Asia, Restructuring Context
    January 2024 - February 2025 (1 year and 1 month)
    International group, Turnover €100M, 300 FTE Feb - 2024 - Present
    • Member of the Executive Committee of Engie Impact France
    • Reorganization of the finance team, creation of the FP&A department (15 FTE / 7 countries)
    • Finance lead for the restructuring project in Europe and Asia
    • Review of processes and change management
  • Filiale ENGIE - Services B2C
    Chief Financial Officer, Legal, Performance, and Regulatory Affairs
    May 2020 - January 2024 (3 years and 8 months)
    Turnover €200M, 300 FTE May 2020 - Jan 2024
    • Member of the Executive Committee, supporting operational teams
    • Recruitment and Management of a multidisciplinary Finance team, with a strong focus on tools and performance (11 people): Accounting, Management Control, Taxation, Treasury, Risk Management, Purchase/Sale of Energy Saving Certificates (CEE)
    • Management of the Legal team (contracts and litigation)
    • Restructuring and management of the Regulatory team (9 people): steering regulatory activities including monitoring, administrative compliance, and relations with the Administration (PNCEE).
    • Optimization of processes during the business development phase and professionalization of the entity.
  • Filiale ENGIE - Infrastructures
    Head of Management Control Department
    March 2016 - May 2020 (4 years and 2 months)
    EBITDA = €180M, CAPEX = €240M, 350 FTE March 2016 - May 2020
    • Economic and financial studies: Strong involvement in the acquisition of Elengy by GRTgaz, Elaboration of the regulated tariff ATM5, Second opinion on international development projects
    • Management of the financial cycle
    • Implementation and monitoring of the Group Performance plan
    • Management of operational management control for the three industrial sites
    • Management of a team of 8 people across 3 sites

Reviews

5.0

Out of 2 ratings

J

Jean-Francois

Engie Impact France

Several weeks project

-

Reviewed on 10/7/2025

Merci Ariane pour ton accompagnement bienveillant et efficace dans cette phase de transformation.
J

Jean-Francois

Engie Impact France

Several weeks project

-

Reviewed on 8/27/2025

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Education

  • DECF Diploma in Accounting and Financial Studies
    2003
    DECF Diplôme d'études comptables et financières
  • Master Sup de Co
    NEOMA Business School
    Master Sup de Co

Skill set

Categories