Freelancer profile translated to English.

Description

I am Yoansen, I offer you two years of experience in data analysis, process automation, and custom data tool development.

I primarily focus on three complementary areas of expertise:

📊 Data Analysis & Visualization

Design of Power BI, Excel, and MySQL dashboards

Financial analysis (Revenue, expenses, cash flow, margin, operational performance)

Automation and reliability of monthly reporting

⚙️ Workflow Automation & Optimization

Intelligent data extraction (OCR + AI) for PDFs and complex documents

Task automation via Python, n8n, or Power Automate

Automated generation of reports, presentations, and structured files

🧠 AI & Data Science

Development of computer vision models (including YOLOv8)

Python scripts and applications tailored to your business needs

Structuring data pipelines and preparing datasets

My approach: understand your challenges, simplify processes, and deliver reliable, documented, and ready-to-use solutions.

I combine technical rigor, analytical thinking, and a service-oriented mindset to transform data into a true lever for efficiency and performance.

Technical skills: Python, SQL, Power BI, Advanced Excel, Streamlit, MySQL, n8n, Power Automate, GitHub, OCR (PaddleOCR / Mistral OCR).

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Remote only

Primarily works remotely

Cabinet d’expertise comptable
Data analyst
DIGITAL AND IT
September 2024 - September 2025 (1 year)
Paris, France
I designed and deployed an intelligent PDF data extraction workflow combining advanced OCR and LLM, orchestrated via n8n, to standardize and automate the processing of heterogeneous financial documents (invoices, bank statements, reports…).

The process begins with automatic PDF retrieval (upload, email, or monitored folder), followed by OCR extraction via Mistral OCR or PaddleOCR, capable of reconstructing key structures: tables, amounts, dates, labels. The raw data is then interpreted by an LLM responsible for normalizing fields (date formats, labels, amounts), detecting inconsistencies, and transforming the extracted information into a standardized schema, identical for all documents.

The workflow includes automatic consistency checks, an error management system, and the generation of the final deliverable (CSV, Excel, or JSON), automatically archived on SharePoint or Drive with team notification.
This approach now standardizes 70% of deliverables without human intervention, while drastically reducing extraction time and the risk of manual error.

In summary, this solution offers a robust, scalable, and fully automated process, enabling reliable and fast processing of complex documents, directly integrable into existing business workflows.
Artificial Intelligence Automation
Cabinet d’expertise comptable
Data analyst
DIGITAL AND IT
September 2023 - September 2025 (2 years)
Paris, France
Creation of interactive financial dashboards (Power BI, Excel, MySQL) for tracking revenue, expenses, and cash flow → used by 8+ employees, resulting in a 30% time saving on monthly reporting.

Development of a Streamlit application that automatically generates commercial PowerPoint presentations → reduction in slide preparation time from 1 hour to 5 minutes per presentation.

Implementation of an intelligent data extraction workflow
PDF (OCR + LLM via n8n and Mistral OCR) → 70% standardization of deliverables.
Microsoft Power BI Artificial Intelligence Python SQL