João V.
Data Scientist

Skills

Sql

Python

João is available for hire

Hire João V.

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Bio

Data Scientist with a technical foundation as a Computer Science Technician and a bachelor's degree in Information Systems. Expertise lies in data analysis and data science, with a particular focus on creating robust solutions for data storage management and automation workflows. Proficient in utilizing Apache Airflow for data flow management, MySQL for database operations, and MinIO for data lake storage. Skilled in Python, with extensive experience in development environments such as Jupyter Notebook. Competent in data manipulation using Pandas, and data visualization through Matplotlib, Seaborn, and Plotly. Adept in machine learning algorithm development using Scikit-learn and the Pycaret framework for automated algorithm creation and evaluation. Additionally, capable of designing user interfaces with the Streamlit library. Organized, responsible, and dynamic, with an intermediate proficiency in English, seeking a role in a company that champions employee professional growth and aims at contributing to its overall success.

Data Scientist
1/1/2024 - Present

Managed and maintained database systems, providing robust support in their planning and execution. Adept in modeling, loading, and ensuring data availability. Experienced in designing and implementing data collection migration, normalization, and analysis processes. Proficient in Python and SQL programming languages, with expertise in clustering algorithms, classification, regression, time series, and both supervised and unsupervised machine learning algorithms.
Pricing Assistant
11/1/2023 - 1/1/2024

Contributed to the implementation of the company's pricing process by capturing and internalizing competitors' pricing data. Developed a comprehensive database to store captured prices and assisted in the pricing of national, nationalized, and imported products. Maintained up-to-date sales prices and product registrations while producing and updating cost price reports. Automated processes using Python and performed detailed data analysis to inform pricing strategies.
Data Analysis Internship
9/1/2021 - 12/1/2022

Developed proficiency in constructing dashboards and analytical reports, with a strong focus on creating and visualizing georeferenced data using tools like API Mapbox and QGIS. Excelled in data analysis with Python, leading to the development of machine learning models tailored to telecommunications sector data. Demonstrated expertise in supporting the creation of dashboards and participated actively in managerial meetings, contributing to the creation of intelligence reports.
Technical Support
5/2/2018 - 4/2/2020

Developed proficiency in computer maintenance, support, and configuration, specifically in high-demand call center environments. Acquired expertise in troubleshooting hardware and software issues to ensure minimal downtime and optimized performance. Utilized tools and frameworks to diagnose and resolve technical problems efficiently. Gained hands-on experience with various operating systems and support platforms to enhance operational efficiency. Demonstrated skills in maintaining network connectivity, updating system software, and implementing security protocols to safeguard data integrity.