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Maxime GruhnMG

Maxime Gruhn

Performance, Collections, and Audit Manager

€550/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Maxime

Finance professional specializing in Collections and Performance Management, I assist companies in optimizing their Order-to-Cash cycle and treasury.

At the intersection of finance, data, and operations, I combine financial analysis, process structuring, management, and the creation of key performance indicators (KPIs) to achieve sustainable performance improvement.

Results-oriented, I blend analytical rigor, strategic vision, and operational execution capabilities.

From data auditing to process implementation, including vendor management and financial indicator monitoring, I work across the entire financial value chain with a strong results-driven culture.
  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • Sowee - EDF
    Manager, Performance, Collections & Finance Processes
    ENERGY AND UTILITIES
    September 2023 - Today (2 years and 9 months)
    Courbevoie, France
    Daily use of Excel (advanced), Power BI, Salesforce, Zuora

    Collections
    - Full management of collection activities (Order-to-Cash cycle)
    - Analysis and monitoring of the aging balance (outstanding customer balances, non-payments, DSO)
    - Coordination and management of external collection service providers
    - Implementation and optimization of collection strategies
    - Monitoring of complex cases (Cordis, social security organizations, specific situations)
    - Management of payments, refunds, and adjustments
    - Implementation, control, and optimization of collection processes
    - Creation and tracking of performance indicators (collection rate, aging, provider performance, etc.)

    Finance & Management
    - Audit and control of accounting data
    - Creation of financial statements and cash flow monitoring
    - Invoicing management and discrepancy control
    - Tax monitoring and management
    - Development of financial reports and KPI creation
    - Construction and presentation of dashboards in Power BI
    - Financial forecasting (receipts, non-payments, performance)
    - Optimization and formalization of internal processes
    Microsoft Power BI Microsoft Excel Process Optimization Debt Collection Audit
  • Lost Prevention Consulting
    Design & Implementation of KPIs from Raw Data – Multi-company
    PUBLIC SAFETY
    September 2025 - November 2025 (2 months)
    Paris, France
    Data structuring and analysis mission for the creation of performance indicators for two distinct companies, at the request of a client.

    Starting from an unexploited raw data file, the objective was to transform the information into clear and actionable management tools.

    Interventions carried out:
    Analysis and cleaning of source data
    Structuring and validation of databases
    Identification of key indicators suitable for each company
    Creation of customized KPIs
    Implementation of monitoring dashboards
    Formalization of a simplified performance reading

    Result:
    Improved visibility on operational performance
    Clear and structured decision-making tool
    Time saved in analysis and management
    Standardization of indicators between the two structures
    Microsoft Excel Data Analysis Audit Process Optimization Reporting
  • JD Sports (UK)
    Advanced Excel Training: Optimization of Audit Processes & KPI Creation in Excel
    RETAIL (LARGE RETAILERS)
    May 2025 - June 2025 (1 month)
    Courbevoie, France
    Advanced Excel coaching and training mission for a Retail team as part of optimizing their internal audits.

    Objectives:
    Accelerate the analysis of complex source files
    Identify errors and anomalies more quickly
    Structure reliable tools to improve decision-making

    Interventions carried out:
    Advanced Excel training (complex formulas, pivot tables, lookups, data structuring, charts)
    Creation of automated analysis tools
    Structuring and simplification of base files
    Implementation of audit KPIs for monitoring performance and errors
    Optimization of processing time and validation of analyses

    Result:
    Significant improvement in analysis speed, better data comprehension, and validation of the internal audit process.
    Rigor Microsoft Excel Data Analysis Audit Process Optimization

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