Hi, I'm Ouassil Dahimene
I help businesses turn data into results — from scraping and ETL pipelines to full-stack AI-powered applications — delivering insights through dashboards, APIs, or complete SaaS products
About Me
Get to know me better and what drives my passion for data
Available for opportunities
About Me
Python Developer and Data Scientist with 4+ years of experience building end-to-end data systems. I specialize in web scraping, ETL pipelines, workflow automation, data analysis, and machine learning. From extracting data from complex websites to building robust ETL pipelines and deploying predictive models, I take your data from raw to ready: collected, processed, analyzed, and delivered automatically through dashboards, APIs, or bots.
Featured Projects
A selection of my recent work in data analysis, fraud detection, and data engineering
MonAssistantEntreprise
B2B SaaS platform for French entrepreneurs offering AI-powered document analysis (Google Gemini 2.5), a credit wallet, and an unlimited subscription.
Job Aggregation Data Platform
Production-grade data engineering platform with web scraping pipelines, ETL workflows, and intelligent job matching system.
Person Record Clustering with Fuzzy Matching
Entity resolution system for clustering duplicate person records using fuzzy matching and graph algorithms.
Skills & Technologies
Tools and technologies I use to bring ideas to life
Languages
- Python
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SQL - Linux
ML & AI
- Pandas
- NumPy
- Scikit-learn
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XGBoost - Plotly
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Power BI - Google Gemini
Data Engineering
- PostgreSQL
- MySQL
- Teradata
- DuckDB
- PySpark
- Hive
- Airflow
Web & Backend
- FastAPI
- Django
- React
DevOps & Cloud
- Docker
- Nginx
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AWS - Git
Work Experience
My professional journey and key accomplishments
Full Stack Developer & AI Integration
- Built MonAssistantEntreprise, a B2B SaaS for French entrepreneurs with AI-powered document analysis using Google Gemini 2.5
- Architected full-stack system: async FastAPI backend, React 18 + Chakra UI frontend, PostgreSQL with SQLAlchemy 2.0
- Implemented credit wallet, pay-per-use pricing, monthly subscription (Pass Expert), and a full admin panel
- Secured platform with JWT auth, Fernet file encryption, HMAC-signed URLs, bcrypt, and rate limiting
- Containerized with Docker Compose (5 services); 99 pytest tests with full coverage of auth, wallet, services, and admin
Fraud Professional / Data Analyst
- Daily analysis of large datasets to detect anomalies and fraudulent activities
- Design and maintenance of ETL pipelines integrating data from Teradata, Hive, and FTP
- Development of ML models (XGBoost, Random Forest, K-Means, DBSCAN) for fraud detection
- Creation of automated dashboards and reports for fraud and revenue assurance KPIs
- Full automation of Revenue Assurance and Fraud dashboard
- Automation of fraud controls using Python/SQL scripts for near real-time detection
Backend Python/Odoo Developer
- Developed backend modules in Python/Odoo for patient management
- Integrated REST APIs for communication with third-party services
- Managed and optimized PostgreSQL databases
- Authored technical documentation and provided training support
Python/Django Developer - Internship
- Developed Django web applications with REST APIs
- Created test datasets to validate API behavior
- Implemented unit tests and authored technical documentation
Python Developer - Internship
- Developed interactive data center network mapping tool using Python/NetworkX
- Automated network device configuration for Cisco and Dell through Python scripts
Certifications & Awards
Professional certifications and recognitions
Apache Airflow DAG Authoring Certification
Astronomer
Power BI - Data Analyst
IT Talents School
Let's Connect
Feel free to reach out for collaborations or just a friendly chat