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Sandrine OverneySO

Sandrine Overney

Expert Excel / Management Controller

€1,200/day
Genève, CH
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sandrine

I support companies and individuals in their Excel projects, with robust, reliable, and easy-to-use custom tools. I also train clients who wish to reach the Excel Expert level.
For example, I created a quote-invoicing system that allows, with a single click, to select desired items, generate the quote, then transform it into an invoice and track each stage of the offers.
This is just one example among others.
For training, I provide one-on-one or small group sessions for people who want to improve their skills and use Excel more fluidly, remotely or at the company's or individual's premises.
Of course, I can also take over existing files to correct or even improve them.
I can also provide training on Word, Outlook, and PowerPoint.

My main profession as a Management Controller allows me to build meaningful tools; I am not just an Excel expert!

Finally, the qualities that describe me are: pedagogical, inventive, creative, smiling, optimistic, and enthusiastic, in addition to being rigorous and conscientious, of course. I also like to understand the real needs of clients, and therefore ask the right questions to ensure that their wish corresponds to their need. These qualities combined allow me to have an excellent collaboration with my clients.
  • French

    Native or bilingual

  • English

    Fluent

  • German

    Conversational

Can work on-site
Genève (up to 50km), Lausanne (up to 50km), Martigny-Ville (up to 50km), Fribourg (up to 50km)

Experience

  • Smart Management Consulting
    Excel Consultant
    August 2018 - Today (7 years and 10 months)
    Genève, Switzerland
    Creation of fully automated and client-specific Excel tools:
    - quotes, confirmations, invoices, management of offers, items, intervention reports
    - financial reporting linked to a database, generating charts, created with one click
    - planning of employee absences and presences according to complex work rules
    - calculation of vacation entitlements according to the Bernese scale, taking into account the absence rate, identification of balance end, alert before balance due date.

    Maintenance and evolution of an integrated Excel tool and user support
    Advice and advanced training on Word (master document, document directory)
    Customized training on Excel (including preparation for Excel Expert certification)
    Microsoft Excel
  • Systeo SA
    Abacus Consultant
    SOFTWARE PUBLISHING
    September 2025 - Today (9 months)
    Carouge, Switzerland
    Support and implementation of Abacus modules in companies.
    Excel support and optimization advice
    Abacus Microsoft Excel
  • FIPOI
    Management Controller
    September 2019 - September 2025 (6 years)
    Geneva, Switzerland
    • Establishment of financial planning, financial statements, their appendices, and quarterly reporting
    • Graphical transformation of financial statements for better visibility
    • Development and creation of automated investment management tools on Excel, participation in corresponding committees
    • Identification of needs and business processes
    • Management and development of the Abacus ERP, project manager in the integration and development of new functionalities.
    • Excel training for FIPOI personnel
    Abacus Microsoft Excel Operational Management Control

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Education

  • Master in Management Control and Operational Audit
    University of St Etienne
    2005

Certifications

Skill set

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