Luciana
Zeferino

Data Analyst

My Works Download CV

About Me

Hi there! I'm Luciana, a Data Analyst currently part of Vulog's data team in the beautiful city of Nice, France.

My journey in data analysis has been both challenging and rewarding, allowing me to develop strong skills in tools like Tableau, Power BI, SQL, and Python. I’ve had the opportunity to work on diverse projects that have sharpened my analytical abilities and fueled my passion for transforming complex data into actionable insights.

In addition to my technical skills, I am deeply committed to continuous learning and staying at the forefront of data analytics trends.

I invite you to explore my portfolio and reach out if you’d like to discuss potential collaborations or opportunities.

Skills

Data Visualization

Creating intuitive and interactive dashboards to present data insights effectively.

Data Extraction and Structuring

Extracting, cleaning, and structuring data from various sources for analysis.

Data Analysis and Exploration

Analyzing and exploring datasets to uncover trends and patterns.

Process Automation

Automating repetitive data tasks to improve efficiency and accuracy.

Statistical Analysis

Applying statistical techniques to interpret data and generate actionable insights

Tools

SQL Python Power BI Tableau Tableau Prep Google Cloud MySQL SSMS SSIS Jira Confluence Excel GitHub AWS

HackerRank Profile

Education

MSc Machine Learning Engineer 12/2023 - 06/2025

Openclassrooms, Nice, FR

Focus on supervised and unsupervised learning, deep learning, model evaluation, data preprocessing, and the use of Python, NLP, computer vision, MLOps, and cloud platforms like AWS and Azure

MSc in Data Analytics 10/2022 - 12/2023

Data Science Tech Institute, Sophia Antipolis, FR

Work-study program focusing on key data analytics skills such as SQL for database querying, Python and R for statistical analysis, data visualization with Power BI and Excel, ETL processes, and CRM data management.

BSc in Data Analytics 10/2021 - 10/2022

Openclassrooms, Nice, FR

Project-based program, using real-world cases to develop practical skills. Projects include market analysis, counterfeit note detection, income prediction, and dashboard creation for business insights, emphasizing tools like Power BI, Excel, Python, R, and SQL.

Certifications

AWS Machine Learning Fundamentals

Udacity & AWS08/2024

PL-300 Power BI Data Analyst Associate

Microsoft Certification01/2024

AI Programming with Python

Udacity & AWS 09/2023

Data Analyst Professional Certificate

Coursera & Google 09/2021

Professional Experience

Data Analyst 10/2022 - Present

Vulog, Nice, FR

  • Conducted comprehensive data exploration to identify trends and patterns, proposing analyses and KPIs that enhanced decision-making and operational management.
  • Created detailed reports and interactive dashboards for internal and external clients using Tableau to measure and analyze fleet performance, ensuring the information is accessible and actionable.
  • Designed and maintained automated tools for data extraction, preparation, and modeling. This includes the development of a virtual connection on Tableau Cloud, significantly improving process efficiency
  • Established and maintained ETL pipelines using Tableau Prep Builder to streamline data transformation processes, ensuring high data quality and integrity
  • Implemented a centralized data security solution with Row-Level Security (RLS) directly at the data source (virtual connection), reducing data management complexity and enhancing security
  • Ensured compliance with data protection regulations in data processing activities.
  • Designed comprehensive training materials and presentations to facilitate the adoption of developed tools by users, ensuring effective utilization and integration into daily operations

Portfolio

Welcome to my portfolio! Here, you'll find a collection of projects I've developed both during my studies and in my professional career, showcasing my ability to turn data into actionable insights

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Monitoring Vehicle Odometer SQL

Monitor the total mileage recorded on vehicle odometers at the end of each month for every booking.

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Battery Alert System SQL

Identify vehicles with insufficient battery to return to the starting point of their trip

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Olist E-commerce Analysis SQL

SQL queries to address specific questions related to customer purchases and seller performance.

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Real Estate Sales Analysis SQL

This project focuses on analyzing real estate sales across France .

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