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Arnaud TrenchantAT

Arnaud Trenchant

Retail & E-commerce Transition Manager | P&L Expert

€750/day
Lille, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Arnaud

Need to secure a critical phase or lead a high-stakes transformation?

I act as a Transition Manager to turn your complex challenges into measurable results.
With over 20 years of operational experience, I ensure execution in growth, restructuring, or turnaround contexts.

My pillars of excellence:
  • Performance & P&L: Management of business units up to €1 billion (Food & Non-Food).
  • Omnichannel Transformation: Comprehensive expertise from Click & Collect to Quick Commerce and store digitalization (Store Picking).
  • Crisis Leadership: Management of multidisciplinary teams (25+ people) in sensitive contexts.
  • Audit & Strategy: 360° rapid diagnosis and deployment of pragmatic digital roadmaps.
My promise: Align strategy and the field to guarantee sustainable profitability while ensuring your teams' autonomy.

🚀 Contact me to discuss your transformation challenges.
  • French

    Native or bilingual

  • English

    Conversational

Can work on-site
Lille (up to 50km), Paris (up to 50km), Nantes (up to 50km), Bordeaux (up to 50km), Lyon (up to 50km)

Experience

  • Appui Stratégique
    Transition Director & E-commerce Consultant
    RETAIL (SMALL BUSINESS)
    September 2025 - Today (11 months)
    360° performance audits and restructuring: Analysis of e-commerce business models, UX journeys, and P&Ls for retail players to identify immediate profitability levers.
    Change management and deployment management: Structuring field adoption and securing technological POCs.
    Transition management and "Sparring Partner": Operational support for executives to accelerate sustainable growth.
    Retail E-commerce Change Management Audit Personalized Support
  • Auchan Retail
    E-commerce Lead for Food Offering
    E-COMMERCE
    April 2024 - August 2025 (1 year and 4 months)
    Villeneuve-d'Ascq, France
    Context:
    Management of the strategic activity for Click & Collect and digital food sales. Critical challenge of transforming the operational model to
    secure and develop a business volume of €1 billion in an ultra-competitive market, while ensuring team buy-in during organizational changes. (PSE)

    Missions:
    - Direct management of 25 employees (including 12 Business Developers). Change management to evolve commercial and managerial practices towards greater agility.

    - Performance (P&L) Management: Complete responsibility for managing the activity (€1 billion). Daily analysis and decision-making on
    growth levers: economic KPIs (Revenue, Margin). Work on the product offering to reduce stock turnover by 25%.

    - Customer Journey Optimization: Definition and deployment of innovative digital solutions to streamline the user experience, reduce friction, and increase average basket size.

    - Strategic Project (Store Picking): Support for the digitalization of the offering and redesign of the product charter for the use of AI in completing product descriptions.

    Environment:
    - KPIs Managed: Revenue (€1 billion), Margin, Conversion Rate, Customer NPS, Stock Turnover, Availability Rate.
    - Channels: Click & Collect, Home Delivery, Click & Collect.
    Performance Management Team Management Change Management Customer Journey Optimization Offer Marketing
  • Auchan Retail
    Store Picking Project Manager
    E-COMMERCE
    January 2024 - March 2024 (2 months)
    Villeneuve-d'Ascq, France
    Context:
    Accelerating e-commerce flows, critical need to ensure customer promise reliability (product availability) and optimize in-store picking productivity. Transversal mission to support the business in deploying new Store Picking tools and processes.

    Missions:
    - Offer Digitalization: Management of product enrichment and publication of the historical store offering.
    - Logistics Flow Optimization: Redesign of safety stock management rules to reduce online stockouts, optimize publication, and improve the complete order rate.
    - Change Management: Support for operational teams in adopting new picking tools.

    Technical Environment:
    - Tools: Picking Tools (KBRW), Catalog Management (PIM).
    - KPIs: Availability Rate, Stock Turnover, Publication Rate.
    Retail Analytical and Synthesis Skills Commercial Strategy Digital Tools Project Management

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Education

  • Strategic Planning Contentsquare
    La planification stratégique Contentsquare
  • BTS, Action Commercial
    Greta du Bassin de Lille
    2002
    BTS, Action Commercial

Certifications

  • Digital Marketing Strategy
    Naias Formation
    2025
    SEO Audit Content Management Systems (CMS) SMO Paid Ads SMA User Experience (UX) SEO Strategy Customer Relationship Management (CRM) E-mailing SEA

Skill set

Categories