Freelancer profile translated to English.
Back to original languageAbout Rafael
Data/AI-oriented Python developer, I design internal tools, automation scripts, and business prototypes to help companies reduce manual tasks, ensure data reliability, and save time.
My background combines technical training at École 42 with field experience in various sectors: inventory management, real estate, finishing trades, construction, technical drawing, and operational services. This dual background allows me to quickly understand business constraints before proposing a simple, useful, and maintainable digital solution.
I can undertake missions such as:
- Automating Excel or Google Sheets files;
- Python scripts;
- Data cleaning and structuring;
- Dashboards;
- Internal business tools;
- Data/AI prototypes;
- API integration;
- Documentation and process improvement.
I work with a rigorous approach: needs analysis, readable code, testing, documentation, Git, Docker, and software quality principles.
My goal: to deliver concrete solutions that are understandable by business users and easy to maintain.
French
Native or bilingual
Portuguese
Fluent
English
Fluent
Remote only
Primarily works remotely
Experience
- Raveriss.devBusiness Application Developer — Early Childhood PlanningPUBLIC SECTORApril 2026 - May 2026 (1 month)Rueil-Malmaison, FranceDesign and development of a web tool to simplify schedule creation for early childhood centers.The project addresses a concrete business need: reducing the time spent on repetitive manual tasks, securing reception organization, and making information more readable for teams.I worked on needs analysis, data structuring, user interface, schedule generation logic, and functional testing.This achievement illustrates my ability to transform an operational problem into a simple, readable, and usable digital tool for non-technical users.Skills used: JavaScript, HTML, CSS, business automation, data structuring, business UX, testing, documentation.
- Ecole 42Data / AI Developer — Python and Machine Learning ProjectsEDUCATION AND E-LEARNINGSeptember 2022 - Today (3 years and 9 months)Paris, FranceExecution of Data/AI and software projects as part of my training at École 42, with particular attention to code quality, reproducibility, and concrete application of results.Work performed: data preparation, normalization, model training, prediction generation, results visualization, process automation, testing, and documentation.I notably worked on deliverables related to Machine Learning, tabular classification, linear regression, constrained optimization, and Docker containerization.This experience strengthens my ability to transform a technical or business need into a structured, testable, and maintainable Python solution.Skills used: Python, NumPy, Pandas, scikit-learn, Matplotlib, SQL, Docker, Git, testing, documentation.
- SurcoufInventory Manager — Logistics Business ExperienceLOGISTICS AND SUPPLY CHAINDecember 2001 - March 2006 (4 years and 3 months)Thiais, FranceOperational experience in inventory management: goods reception and inspection, stocktaking, restocking, preparation, and shipping.This experience allowed me to concretely understand inventory issues: stock discrepancies, data entry errors, item tracking, task prioritization, reporting, and the need for simple tools to ensure operational reliability.Today, this field knowledge enhances my ability to design automations, Python scripts, dashboards, or internal tools tailored to logistics and operational teams.Skills used: organization, quality control, stock tracking, inventory, reporting, business logic, process improvement.
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Education
- Expert in IT Architecture (RNCP Level 7 – RNCP39774)École 42Expert en architecture informatique (RNCP 7 – RNCP39774)
- Building Studies Technician — Project Design OptionMinistry of Employment2013Formation orientée dessin technique, lecture de plans, conception de documents graphiques, CAO/DAO, modélisation bâtiment et préparation de projets de construction.
Certifications
- Expert in IT Architecture — RNCP Level 7 — RNCP39774École 42
- Building Studies Technician — Project Design OptionMinistry of Employment2013