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Fatou S.FS

Fatou S.

Accounting Reconciliation E-commerce Automation

€620/day
6 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Fatou

Your invoices say €10,000, your bank account shows €9,200. Shopify commissions, Alma and Klarna split payments, Amazon consolidated payments, Cdiscount fees... No one reconciles this correctly. I automate it.
18 years in finance/accounting, 7 years in IT. Former Accounting Manager turned IT Project Manager. I speak both "cost centers" and "APIs".
WHAT I SOLVE
→ Automated reconciliation of e-commerce platform payments (Shopify Payments, Amazon Seller, Cdiscount, Stripe)
→ Reconciliation of Alma and Klarna split payments (3x/4x) — my solution was marked "best answer" on the Pennylane community
→ Automatic isolation of commissions in the correct expense accounts
→ Management of exchange rate differences, partial refunds, VAT on receipts
→ API connection between your sales platforms and your accounting software
ACCOUNTING SOFTWARE MASTERY
Pennylane, Sage X3, Sage 100, Cegid, NetSuite
HOW I WORK
Phase 1 — Audit: I map your e-commerce flows, identify discrepancies and risks, and deliver a report with recommendations and a quantified action plan.
Phase 2 — Implementation: I develop and deploy automated reconciliation scripts tailored to your stack.
Phase 3 — Maintenance: monitoring, adaptation to API changes, ongoing support.
TYPICAL RESULT
An e-merchant with €5M in revenue, 3 platforms: reconciliation time reduced from 2 days/month to 20 minutes.
FOR WHOM
→ Multi-platform e-merchants who want to make their accounting reliable
→ Accounting firms with time-consuming e-commerce clients
→ CFOs/Finance Directors preparing for the 2026 electronic invoicing reform
Technical stack: Python, FastAPI, Shopify API, Amazon API, Stripe API, Alma API, Klarna API, Pennylane API, Make.com, n8n, PostgreSQL, accounting reconciliation, automated reconciliation, Shopify, Amazon Seller, Klarna, Stripe, PayPal, Pennylane, Sage X3, Sage 100, NetSuite, Cegid, Python, SQL, REST API, electronic invoicing, B2C e-reporting.
  • French

    Native or bilingual

  • English

    Fluent

  • Bambara

    Native or bilingual

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

Experience

  • DESSIGNS
    Malt logoOn Malt
    Financial Flow Audit and Scoping
    FASHION AND COSMETICS
    March 2026 - March 2026
    Audit of financial flows and action plan. Implementation of an API between Shopify and Pennylane for reconciliation and automatic matching.
    Pennylane Shopify API Financial Flow Management
  • MERVEIL
    Malt logoOn Malt
    Financial Flow Audit and Potential Automations
    HOSPITALITY
    September 2025 - October 2025
    . CONTEXT AND OBJECTIVES OF THE AUDIT
    1.1 Context

    This audit was conducted to analyze all financial flows of the hotel establishment and identify areas for improvement to optimize financial management, reduce processing times, and ensure data accuracy.
    1.2 Objectives

    Map all incoming and outgoing financial flows
    Identify friction points and malfunctions
    Propose concrete and operational recommendations
    Improve real-time cash visibility

    2. SCOPE OF THE AUDIT

    The audit covers the following areas:
    Domain
    Analyzed elements
    Revenue
    Bookings, receipts, OTAs (Booking, Expedia…), direct sales
    Expenses
    Suppliers, fixed costs, payroll, F&B purchases
    Treasury
    Cash monitoring, bank reconciliations, forecasts
    Invoicing
    Invoice issuance, tracking, and collection
    Tools & Systems
    PMS, accounting software, channel manager, payment terminals
    Financial Flow Management Pennylane Training Accounting Pre-accounting
  • FCSDEVELOPER
    Full Stack Developer
    TECH
    August 2023 - Today (2 years and 9 months)
    Saint-Gratien, France
    My professional skills encompass the creation of web and mobile applications, website development, and assisting companies in designing custom chatbots. I also distinguish myself through my mastery of AI and functional task automation, areas where I constantly strive to innovate to optimize operational efficiency. My expertise skillfully combines technology and strategy to deliver exceptional quality solutions.
    React.js Next.js Wordpress Make OPEN AI VOICEFLOW

Reviews

5.0

Out of 4 ratings

L

Lea

Audit des flux financiers et cadrage - DESSIGNS

Reviewed on 4/22/2026

We called upon Fatou to audit our e-commerce invoicing system, with a focus on reconciliation between invoices and payments, in a complex context. She carried out her mission with great rigor and involvement. She quickly understood our flows and identified concrete areas for improvement, particularly in automating reconciliation. We also greatly appreciated her communication throughout the mission: fluid, transparent, and proactive. Fatou is a serious, dedicated, and reliable freelancer, whom we recommend without hesitation.
I

Ibrahim

FIDELICOACH

Reviewed on 2/16/2024

Fatou was very available and the results of her work were quick and satisfactory. I would be delighted to work with her again.

Recommendations

VP
Cyril LesotCL
FU
Victoria Penault and 2 other people have recommended Fatou

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Education

  • Full Stack Web and Mobile Developer
    Le Reacteur
    2022
    Developpeur Fullstack Web et Mobile
  • RNCP Level 6 Title (BAC+4) Manager of Management, Administration and Business Management, General
    Conservatoire National des Arts et Métiers
    2020
    Titre RNCP Niveau 6 (BAC+4) Responsable de Gestion , Administration et gestion des affaires, général

Skill set

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