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Mathis EssertelME

Mathis Essertel

SUPPLY CHAIN CONSULTANT DATA & STRATEGY

€450/day
1 project
Paris, FR
3-7 years

Average response time: 24 hours

Freelancer profile translated to English.
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About Mathis

Supply chain consultant based in Paris, I support companies in optimizing their inventory and procurement management, with an approach focused on rigor, performance, and transparency. My experience as a logistics manager at Castorama, logistics analyst at Redspher, and logistics agent in various structures has allowed me to master the entire supply chain cycle, from ERP control to daily inventory management, including procurement monitoring and team supervision.

My strength: in-depth mastery of inventory management methods, particularly the Wilson/EOQ (Economic Order Quantity) method, as well as FIFO and LIFO approaches. I apply these techniques to optimize stock levels, reduce costs related to overstocking or stockouts, and improve the reliability of your logistics flows. I also ensure the implementation and in-depth analysis of KPIs (turnover, DSI, dormant stock, OTIF), the management of ERP/TMS tools (Coliweb, E4P, E2P), and the supervision of teams of up to 5 people.

My approach: active listening to your needs, fine analysis of your processes, and deployment of concrete solutions to increase the profitability of your supply chain, secure your stock, and improve customer satisfaction. Punctuality, confidentiality, and commitment are my watchwords, reinforced by a culture of discipline acquired in the Army.

Looking for a responsive, expert, and proactive freelancer? Let's discuss your objectives to sustainably boost the performance of your supply chain.
  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • Maxime Reder
    Malt logoOn Malt
    Validation of a supply chain predictive method
    October 2025 - October 2025
    Paris, France
    Validation and optimization of an ML predictive model for supply chain flow optimization

    I assisted LogiFlux Solutions in validating and optimizing their Machine Learning model for forecasting financial and operational flows. My role: to provide my field expertise to transform a theoretical algorithm into a reliable predictive tool perfectly aligned with operational realities.

    My intervention in 4 strategic axes:

    1. ML Model Relevance Audit
    In-depth analysis of the predictive architecture to identify discrepancies between algorithmic assumptions and field reality. I detected critical biases that would have compromised long-term forecast reliability.

    2. Predictive Accuracy Optimization
    Challenging and adjusting key parameters: refined weighting of supplier lead times, integration of seasonal peaks, consideration of overlooked indirect costs, and calibration of alert thresholds for optimal responsiveness to variations.

    3. Data Science / Operations Bridge
    Creation of an essential link between the ML team and concrete operational challenges. I translated field constraints into parameters usable by the algorithm, ensuring that each generated forecast was directly actionable.

    4. Monitoring Framework and Sustainability
    Design of a regular monitoring methodology to prevent model drift over time and maintain its performance in the face of evolving supply chain environments.

    Concrete Result:

    A robust predictive model offering significantly more reliable forecasts, allowing for accurate anticipation of variations and real-time optimization of resource allocation.
    This mission demonstrates my ability to converge operational supply chain expertise and artificial intelligence to maximize the business impact of ML projects.
    Data Analysis Risk Analysis Financial Analysis Supply Chain Strategy Supply Chain Optimization
  • REDSPHER
    LOGISTICS ANALYST
    LOGISTICS AND SUPPLY CHAIN
    May 2025 - Today (1 year and 3 months)
    Nancy, France
    EDF EPR 2 PROJECT:
    - Control via ERP (E4P, E2P) with API with the client
    - Monitoring and management of logistics flows with process optimization
    - Data processing
    - Compliance with confidentiality clauses (ranging from Internal to Very Confidential)
    - Definition and management of OTIF logistics KPIs
    - Daily reporting via Excel
    - Cost optimization
    - Analysis and management of additional costs
    - Transport contractual management
    ERP Software Notion Supply Chain Management Microsoft Excel Supply Chain Strategy
  • CASTORAMA,
    LOGISTICS MANAGER
    LOGISTICS AND SUPPLY CHAIN
    March 2024 - March 2025 (1 year)
    Nancy, France
    LOGISTICS REENGINEERING AND SUPPLY CHAIN PROCESS OPTIMIZATION PROJECT:
    - Daily inventory management (EOQ/WILSON, FIFO & LIFO)
    - Goods arrival control
    - Storage optimization
    - Order processing via ERP (coliweb, SAP)
    - Email correspondence
    - Team supervision (3-5 personnel)
    - Information relay between team shifts
    - Regular customer contact for after-sales service file processing.
    - Weekly KPIs for stock turnover, DSI, overall supply chain profitability, obsolete/dormant stock
    Order Management Inventory Management Inventory Optimization Procurement Management Procurement Planning

Reviews

5.0

Out of 1 rating

MaximeM

Maxime

Maxime Reder

Reviewed on 10/10/2025

I had the pleasure of collaborating with this supply chain consultant on the validation of a predictive model at LogiFlux Solutions. His field expertise allowed us to effectively challenge our approach and identify key biases. His recommendations significantly strengthened our model's reliability. I particularly appreciated his understanding of operational challenges and the quality of our exchanges. A professional I highly recommend for any supply chain optimization mission.

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