Freelancer profile translated to English.
Back to original languageAbout Martin
Martin, a data engineering graduate, specializes in web scraping, automation, and creating management tools on Excel, Google Sheets, and Google Apps Script.
◉ I regularly intervene... ⤵︎
Scraping | Automation | Data Cleaning
• Scraping | Automation | Data Cleaning
• Extraction of competitor prices from Amazon, Etsy...
• Retrieval and enrichment of leads from directories and professional sites
• Collection of real estate listings from SeLoger, Leboncoin...
• Scraping product images from marketplaces for e-commerce catalogs
• Extraction of customer reviews from Trustpilot, Google Reviews...
• Retrieval of product sheets (references, specs, availability) from B2B sites
• Collection of Instagram hashtags/images (#your_brand) for competitive intelligence
• Bypassing anti-bot protections (Cloudflare, CAPTCHA, rate limiting)
• Use of rotating proxies (4G/fixed IPs) for large volumes
• Automatic cleaning after scraping
• Setting up real-time alerts (low prices, available stock, new items)
Excel | Google Sheets | VBA | Google Apps Script
• VBA macros to automate repetitive tasks (copy-paste, formatting, imports)
• Creation of interactive Excel dashboards (Power Query + Power Pivot)
• Google Apps Script scripts to synchronize Sheets with the Google ecosystem (Sheet, Calendar, Gmail)
• Connection of external APIs to Google Sheets (JSON parsing, automatic imports)
• Custom VBA UserForms (user interface for data entry/consultation)
• Automatic data validation (consistency checks, anomaly alerts)
• PivotTables/VBA for multi-source consolidation (several Excel files)
• VBA protection/hidden sheets for secure business tools
• Looker Studio connected to Google Sheets for real-time BI dashboards
Available 7 days a week via Malt messaging, quotes in < 24 hours after initial contact.
Response in less than an hour
French
Native or bilingual
English
Conversational
Can work on-site
Nantes (up to 50km)
Experience
- GallianceIT Project ManagerAGRICULTUREJanuary 2026 - Today (5 months)Ancenis, France
Project manager for ERP integration
ERP integration project management (historical data migration, field mapping, acceptance testing)Coordination of business/IT teams for purchasing/inventory/production module configurationRetrieval, analysis, and cleaning of large data volumes
Processing 500k+ Excel/VBA/Python lines (suppliers, inventory, production)Automated cleaning of duplicates/anomalies → clean ERP databases (saving 20h/week)Data Reporting
Power BI/Excel dashboards connected to ERP (revenue, margins, supplier backlog)Automation of management reports (PDF → Outlook, daily sync...) - Concept 3DFounderE-COMMERCEDecember 2022 - Today (3 years and 6 months)Nantes, FranceComplete automation of e-commerce processes: product cataloging, dynamic pricing, logistics, Etsy/Amazon sales ETL.•Development of Python scrapers (Selenium/BeautifulSoup) for 20k+ products/day (Etsy, Amazon, AliExpress): competitor prices, stock levels, logistics costs → intelligent catalog with automatic matching of 3D references.•Implementation of a complete ETL pipeline: scraped data → cleaning → optimal price calculation (margin + logistics + competition) → automatic import into Google Sheets + WooCommerce API (90% time saving, 15h → 1h/week).•Creation of Excel VBA macros + Google Apps Script for catalog management: product photos, auto-generated SEO descriptions, categories/tagging, synchronization of Etsy/Amazon/Colissimo APIs (live package tracking).•Automation of logistics processes: calculation of shipping costs via Colissimo/Chronopost API, stockout alerts, forecasts/replenishment via Python pandas.•Construction of live e-commerce dashboards (Power BI + API): revenue by product/category, average order value, conversion rate, logistics ROI, pricing, A/B testing.Technical stack: Python scraping (Scrapy/Selenium, BeautifulSoup), Excel VBA, Google Apps Script, e-commerce APIs (Etsy/Amazon/WooCommerce/Colissimo), catalog ETL, Power BI, Google Sheets API.
- L2C TECHNOLOGIESData EngineerDIGITAL AND ITSeptember 2022 - December 2025 (3 years and 3 months)Design and industrialization of data pipelines for the automation of the company's marketing and BI processes.•Developed advanced Excel VBA macros and Google Apps Script to automate the processing of 10,000+ B2B leads/month, reducing qualification time by 75% (10h → 2.5h/week).•Implemented REST/JSON API connectors (Google Workspace ↔ internal CRM) for real-time synchronization of acquisition data, generating +4,000 app users via multichannel campaigns.•Created dynamic Power Query/Power Pivot dashboards with live KPIs (CAC, LTV, conversion), used by the marketing team to optimize campaign performance on Google/Facebook Ads by +40%.•Automated massive data ETL (CSV/XLSX imports via VBA + API), audit and performance optimization of 50+ critical Excel files (performance gain x3).•Python Scraping: BeautifulSoup/Selenium for data extraction.
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Education
- Master Data Analyst & Business IntelligenceEuridis Business School2025Ce Master forme aux métiers de Data Analyst, Data Engineer et Business Intelligence Consultant, avec focus sur l'automatisation des flux de données en entreprise.