March/2021 - January/2022
As a Data Analyst at Inatel, I developed Machine Learning solutions for exploratory and predictive analyses using R and Python. I designed Business Intelligence dashboards to visualize complex datasets and built frontend and backend systems, including VBA tools for process automation.
Developed a time series forecasting model (ARIMA) to anticipate demand fluctuations in different regions.
Addressed challenges with data scarcity and inconsistencies, applying data imputation techniques to improve forecasting reliability.
Gained hands-on experience in time series modeling, particularly in dealing with seasonal trends and sparse data.
Tools: Python, ARIMA, SQL.
Automated Excel-based reports, consolidating sales data from multiple sources and improving operational efficiency.
Migrated outdated reporting structures to macro-driven dashboards, reducing manual workload.
Strengthened VBA scripting and Excel automation skills to handle large datasets efficiently.
Tools: VBA, Excel.