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Leon Balloni

Leon Balloni

Software Engineer

Cial DNB | Brazil

Technologies

My Portfolio Highlights

My New Track

SQL for Database Administrators

My New Course

Introduction to Python

Insights curator, carefully selecting and presenting the most valuable knowledge.

My Work

Take a look at my latest work.

course

Data Manipulation with pandas

course

Introduction to Python

course

Intermediate Python

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

My Work Experience

Where I've interned and worked during my career.

TC | Dec 2021 - Present

Jr. Data Scientist

Investigate Business problems in search for Data and ML opportunities; Elaborate model prototypes for viability evaluation Constructed from A to Z Data solutions that solves and delivers business value
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Propz | Jan 2021 - Jul 2021

BI Analyst

Train and improve the financial team to ensure data driven decisions. Create BI solutions with Microsoft Power BI and SQL to build exploratory analysis reports and to turn manual reports into automatic or semi-automatic for financial and managerial purposes Database management and construction with PostgreSQL for financial control and analysis.

Tecnoval | Mar 2021 - May 2021

Jr. Data analyst

Criação de paineis com KPIs de projetos de monitoramento, melhoria e análise das áreas de negócio. Participação em projetos de inserção das ferramentas analíticas juntamente com Key users em setores estratégicos. Processos de extração, tratamento e carga de dados para que seja compreensível e de fácil utilização.

Tecnoval | Mar 2020 - Mar 2021

Data Assistant

Strategic implementation of Power BI solutions for Supply Chain, Finance, HR, R&D, PPC and other departments. Development of Power BI dashboards SQL, TOTVS ERP and Cloud databases. Data modelling, visualization and analysis with Python, Dax and M. Construction of data pipelines with Data prep Dataflow. Training and support for Power BI users. Power BI Service management and control. Scrum oriented projects and tasks.

Tecnoval | Jun 2019 - Mar 2020

IT Intern

Development of Power BI dashboards using TOTVS ERP. Data modelling, visualization and analysis with Dax and M. Business mapping with value proposition canvas.

National Institute for Space Research - INPE | Aug 2018 - Jan 2019

CNPq Scholarship

Synthesis and characterization of barium hexaaluminate and lanthanum hexaaluminate with barium and cobalt to decompose H2 O2 e/ou N2 O for spacial applications in monopropellant propulsion systems

Hydrographic Institute | Apr 2018 - Jul 2018

Quality Intern

Mapping of main residues generated by IH. Legal assessment and evaluation of IH within European residue control regulations. Project implementation and Workflow design for residue management.

National Institute for Space Research - INPE | Aug 2017 - Jan 2018

CNPq Scholarship

Project focused on scientific knowledge difusion and teaching

University of São Paulo - USP | Aug 2015 - Aug 2016

Scientific Initiation

Reaction condition study of Transesterification of macaúba oil for acid heterogeneous catalysis

My Education

Take a look at my formal education

Bachelor in Data Science Virtual University of São Paulo | 2025
Bachelor in Chemical EngineeringUniversity of São Paulo | 2020
Exchange Program in Technology Environmental EngineeringPolytechnic institute of Setubal | 2018
Information and computer science in TechnicalEtec Antonio Devisate | 2011

About Me

Leon Balloni

Working as a data scientist for a financial company and building ML services end-to-end such as recommender system, NLP for classification and clustering modelling for support/resistance-SR stock evaluation.

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