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Marc-Antoine SammarcelliMS

Marc-Antoine Sammarcelli

Transition Manager, Data-BI Project Director

€1,056/day
Versailles, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Marc-Antoine

Over 20 years of experience in Business Intelligence, including 10 years in managing complex projects and leading Data teams in large enterprise environments (Axa, Allianz, Crédit Agricole, FactoFrance/Crédit Mutuel, ENGIE).

Acts as a transition manager to lead an ambitious BI project in a complex environment, to bring a BI/Data team back on track, or to build a BI/Data team from scratch.

2026 Differentiator: Advanced user of AI agents (Dust, LLM) applied to project management and development. Capable of supporting a Data team in its transformation in the AI era and multiplying its productivity.

KEY SKILLS :

BI Team Management :
team building, recruitment, skill development, managing difficult situations

Complex BI Project Management :
Roadmap, budget, steering committee, user stories, acceptance testing

BI Design :
Datamart design, dimensional modeling (star, snowflake), decision support architecture,

Data Governance and Quality :
repositories, migration, non-regression

Cross-functional Leadership :
Business/IT alignment, facilitating stakeholders with divergent interests

AI Transformation :
LLM agents applied to Product Management, automation of deliverables, increasing team autonomy, especially for junior members.
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Versailles (up to 30km), Paris (up to 10km), Saint-Quentin-en-Yvelines (up to 10km), Plaisir (up to 10km), Rambouillet (up to 10km)

Experience

  • Cohord
    FOUNDER
    SOFTWARE PUBLISHING
    October 2023 - Today (2 years and 10 months)
    Puteaux, France

    Context

    Cohord is an instant messaging application that facilitates the organization of activities (1st segment: sports clubs). Like WhatsApp with a shared calendar and no information lost in the conversation flow.

    Content

    • Recruitment and management of service providers, CTO, investors, interns
    • Implementation of AI agents to define user stories and acceptance criteria
    • Application design, acceptance testing
    • Customer acquisition, Growth

    Achievements

    Supported by BPI, MVP delivered in May, distribution started,

    Building AI agents (LLM) with Dust for product design and development: significant productivity gains (4 days of design work => 1.5 hours), transformation into an AI-augmented PM.
    Agentic AI Startup Lean Startup Product Management
  • Factofrance
    BI STRATEGY AND DATA QUALITY
    BANKING AND INSURANCE
    October 2021 - Today (4 years and 10 months)
    Courbevoie, France

    Context

    Factofrance's ERP is migrating to integrate into the Crédit Mutuel IS
    Environment: Jupyter, Vertica, WebFocus, BusinessObjects

    Content

    • Definition and implementation of the BI migration strategy
    • Analysis of regression risks and implementation of a solution to avoid them.
    • Implementation of BI project processes
    • Definition and implementation of data quality
    • Datamart design (customer quality and joinability)

    Achievements:

    Mise en place de bonnes pratiques BI : gouvernance, documentation, standardisation des rapports

    Mise en place de bonnes pratiques BI : governance, documentation, report standardization

    Proactive management of data quality: identifying and resolving issues upstream, before any impact on project delivery

    Facing IT's recommendation to select a subset of reports to limit regression risks: proposing and implementing a solution covering all reports, at a significantly lower cost than the initial approach

    Garantor of BI non-regression in a major IS transformation context.
    Business Intelligence Jupyter Datamart Data Governance Data Strategy
  • ENGIE
    SALES PERFORMANCE DATA CONSULTING (INDEPENDENT)
    June 2021 - September 2021 (3 months)
    Courbevoie, France
    > Define the data and indicators to improve the sales performance of the sales channel dedicated to shopping centers
    Business Intelligence Performance Management Sales Strategy

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