Freelancer profile translated to English.
Back to original languageAbout Guillaume
Do you have numbers... but can you really trust them?
I help you make your financial data reliable, automated, and manageable to turn it into a real decision-making tool.
As a management controller with audit experience (financial and IT), I work at the intersection of finance, data, and systems.
My goal: to transform your often complex and time-consuming reports into clear, reliable, and automated tools.
🚀What I bring you concretely:
🔍Financial Data Reliability
Identification of inconsistencies, data flow security, data quality control
📊Reporting and Dashboard Creation
Performance monitoring (Revenue, margins, OPEX...), Budget/Actual variance analysis
⚙️Process Automation
Reduction of production time (closing, reporting...) using Excel, Power Query, and Power BI
🧩Database Structuring
Centralization and quality improvement of data from multiple sources
🤝Operational Support
Decision-making assistance, exchanges with finance and operational teams
🛠️Tools & Skills
Advanced Excel (Power Query, complex formulas, automation)
Power BI (modeling, dashboards, data visualization)
ERP / EPM (Oracle PBCS / SmartView)
Financial & IT Audit (controls, system reliability)
📈Examples of achievements
Implementation of an automated multi-site margin dashboard (Budget / Actual / Forecast)
Implementation of automatic data consistency controls
Construction of consolidated databases from multiple files
🎯My approach
Pragmatic and results-oriented
Quick understanding of business issues
Simple, robust, and sustainable solutions
🤝Terms
One-time or recurring engagement
Remote work preferred
Daily rate adaptable to the mission
💬 Need to make your data reliable or save time on your reports? Let's talk.
English
Native or bilingual
French
Native or bilingual
Remote only
Primarily works remotely
Experience
- TRIGOManagement ControllerJune 2023 - Today (3 years)Nanterre, FranceManagement Controller at Trigo (LBO Ardian) Responsible for monthly closings for the France scope (1600 FTEs), analysis and communication of results to the group via various dashboards, elaboration of the budget and reforecast. Key contact for operational staff, analyzes the performance of operational sites (+70 sites). Use of PowerBI, PowerQuery, and other internal tools for creating financial reports and in-depth analyses.
- PwC FranceFinancial & IT AuditorSeptember 2021 - June 2023 (1 year and 9 months)Neuilly-sur-Seine, FranceJunior auditor in a Continuum program: Financial Audit & IT Audit. Specialized in auditing financial services companies (including: HSBC, LCL, CDC).
- Crédit Agricole Payment ServicesBanking Operations ManagerJuly 2021 - September 2021 (2 months)Guyancourt, FranceManagement of 3Skey token orders. Daily and monthly reporting of certificate orders. Assistance to Crédit Agricole regional managers. Automation of monthly statistics using VBA. Assistance to LCLF (Anti-Fraud) teams in documenting ongoing fraud cases (via TLX). Issuance of ACS authorizations for the group's Regional Bank employees.
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Education
- Master's degreeSKEMA Business School2021Master's degree CFM (Corporate Financial Management)