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Bryan BuissonBB

Bryan Buisson

Expert Excel - VBA / Access, Power Query

€250/day
1 project
Paris, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Bryan

I transform your manual and time-consuming Excel & Access processes into automated, reliable, and easy-to-use tools.


Excel & VBA & Access Developer, I design tailor-made solutions for:
  • Automation of business processes and complex data flows (extraction, transformation, reporting).
  • Automatic generation of PDF, Word, PowerPoint, or CSV files from Excel
  • Access expertise to structure and manage your databases
  • Design of dynamic and ergonomic interfaces (UX)
  • Steering and monitoring tools (Dashboards)
  • Data consolidation, optimization, and validation

Concrete case:
- Development of a standalone VBA tool for logistics tracking at Stellantis, including dashboards for better visibility and analysis, resulting in significant time savings and improved data reliability.
- Development of an Access script to automate the processing of quarterly flows and ensure the compliance of accounting exports to the management tool

Graduate engineer from IMT Mines Albi and currently pursuing a Specialized Master's in APM at ISAE-SUPAERO, I bring a structured approach focused on performance, deadlines, and ROI.

Available for short or long missions - quick response.
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Basic

Remote only
Primarily works remotely

Experience

  • Avenir DSI
    Malt logoOn Malt
    Update of the Access/VBA billing automation script
    SOFTWARE PUBLISHING
    April 2026 - April 2026
    Paris, France
    Project Description:
    Overhaul and secure a quarterly billing process (maintenance and rental contracts). The solution architecture relies on the complementarity between Microsoft Access for data processing and Excel VBA for automating formatting and generating pivot files.

    Challenges and Solutions Provided:
    • Data processing in Access: Centralization and restructuring of raw database in Access. Evolution of queries and scripts to integrate new complex calculation rules, automate fixed rate management, and apply intelligent cleaning filters (deletion of obsolete or inconsistent lines based on contract type).
    • Automation of export via Excel VBA: Development of VBA scripts to manage data retrieval from Access, automate folder creation, and apply business logic.
    • Securing the flow and accounting compliance: Rigorous control of the structure of final CSV files (guarantee of a unique invoice number per client and per site) to ensure a 100% smooth and error-free import into the company's accounting software.

    Key Skills Highlighted:
    Access Architecture (queries and scripts), Excel VBA development, database processing and cleaning, financial rules management, ERP/Accounting export structuring (CSV).
    Microsoft Excel Microsoft Access Database VBA Automation
  • Office National d'Etudes et de Recherches Aérospatiales (ONERA)
    RESEARCH ENGINEER
    AVIATION AND AEROSPACE
    March 2025 - August 2025 (5 months)
    Palaiseau, France
    Development of a flame response model to pressure oscillations in a low-bypass ramjet to optimize combustion stability in ramjets.
    Independent organization and execution of the modeling project, with verification of numerical results.
    Autonomy Research Modeling Synthesis skills Rigor
  • STELLANTIS
    ASSISTANT ENGINEER – LOGISTICS
    LOGISTICS AND SUPPLY CHAIN
    April 2024 - July 2024 (3 months)
    Rennes, France
    Design of a standalone tracking tool under Excel (VBA) to optimize logistics processes.
    Conduct of economic and organizational analyses to identify areas for improvement.
    VBA Microsoft Excel Microsoft Power BI Python Data Analysis

Reviews

5.0

Out of 1 rating

C

Cédric

Efficace et bon communicant - Avenir DSI

Several days project

-

Reviewed on 4/14/2026

Project managed effectively. Both independent and available. I recommend Bryan for your VBA projects

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Education

  • Specialized Master's - Aerospace Project Management (APM)
    ISAE-SUPAERO
    Une année pour décrypter les enjeux stratégiques et opérationnels des projets aérospatiaux et de défense, et développer une expertise en gestion de programmes complexes. Ce que je vais y apprendre : - Comprendre l’écosystème aérospatial : une vision 360° des industries aéronautique, spatiale et de défense, avec leurs spécificités technologiques, économiques et géopolitiques. - Piloter des projets ambitieux : maîtrise des outils clés (WBS, planification, gestion des risques, indicateurs qualité) pour des cycles longs et à haute valeur ajoutée. - Analyser la viabilité économique : évaluation des coûts, retour sur investissement (ROI), et gestion financière dans un contexte industriel exigeant. - Manager des équipes multiculturelles : techniques pour fédérer, motiver et résoudre les conflits dans des environnements internationaux. - Anticiper les risques : intégration systématique de l’analyse des risques et des normes qualité spécifiques au secteur.
  • Academic mobility
    ÉCOLE NATIONALE SUPERIEURE DE TECHNIQUES AVANCEES (ENSTA)
    2025
    Spécialisation en systèmes pyrotechniques à l’ENSTA, axée sur l’acquisition de compétences appliquées à l’industrie. Les enseignements ont porté sur la balistique intérieure, la propulsion, la sécurité pyrotechnique, la mécanique des matériaux énergétiques, ainsi que sur les processus de combustion (laminaire et hétérogène) et de détonation.

Skill set

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