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Work Background
Data Engineer
Instituto AtlรขnticoData Engineer
Aug. 2022Fortaleza, Cearรก, Brasilโ€ข ๐—”๐—ช๐—ฆ ๐—˜๐—ฐ๐—ผ๐˜€๐˜†๐˜€๐˜๐—ฒ๐—บ ๐—ฃ๐—ฟ๐—ผ๐—ณ๐—ถ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐˜†: Worked extensively within the ๐—”๐—ช๐—ฆ ecosystem, primarily utilizing S3 buckets, EMR, and Redshift, ensuring efficient storage, processing, and retrieval of large datasets. โ€ข ๐—˜๐—ง๐—Ÿ ๐—ฃ๐—ฟ๐—ผ๐—ฐ๐—ฒ๐˜€๐˜€๐—ฒ๐˜€ ๐—ฎ๐—ป๐—ฑ ๐—ฃ๐—ถ๐—ฝ๐—ฒ๐—น๐—ถ๐—ป๐—ฒ ๐— ๐—ฎ๐—ป๐—ฎ๐—ด๐—ฒ๐—บ๐—ฒ๐—ป๐˜: Conducted ETL processes using ๐—”๐—ฝ๐—ฎ๐—ฐ๐—ต๐—ฒ ๐—”๐—ถ๐—ฟ๐—ณ๐—น๐—ผ๐˜„ and managed data pipelines with Azure Pipelines and Terraform scripts, leveraging ๐—ฃ๐˜†๐˜๐—ต๐—ผ๐—ป for task automation and execution. โ€ข ๐—”๐—ด๐—ถ๐—น๐—ฒ ๐— ๐—ฒ๐˜๐—ต๐—ผ๐—ฑ๐—ผ๐—น๐—ผ๐—ด๐˜†: Utilized Agile methodology for effective project management and team collaboration, ensuring timely and successful project delivery. โ€ข ๐— ๐—ผ๐—ฑ๐—ฒ๐—ฟ๐—ป ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐˜๐—ฎ๐—ฐ๐—ธ ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—บ๐—ฒ๐—ป๐˜: Collaborated on developing a data pipeline for Google Analytics using a modern data stack with dbt and Dagster. Contributed to implementing data pipelines with CI/CD and observability, processing hundreds of gigabytes of data daily, ensuring efficient and reliable data processing. โ€ข ๐—Ÿ๐—ฎ๐—ฟ๐—ด๐—ฒ-๐—ฆ๐—ฐ๐—ฎ๐—น๐—ฒ ๐——๐—ฎ๐˜๐—ฎ ๐—›๐—ฎ๐—ป๐—ฑ๐—น๐—ถ๐—ป๐—ด: Leveraged these technologies and processes to ensure the efficient handling and transformation of large-scale data, making it readily available for business intelligence and decision-making.
Lead Data Scientist
Pague Menos DrugstoreLead Data Scientist
Jan. 2022 - Oct. 2022Fortalezaโ€ข ๐—ฆ๐—ฎ๐—น๐—ฒ๐˜€ ๐—™๐—ผ๐—ฟ๐—ฒ๐—ฐ๐—ฎ๐˜€๐˜๐—ถ๐—ป๐—ด ๐—ฎ๐—ป๐—ฑ ๐— ๐—ฎ๐—ฐ๐—ต๐—ถ๐—ป๐—ฒ ๐—Ÿ๐—ฒ๐—ฎ๐—ฟ๐—ป๐—ถ๐—ป๐—ด: Developed, enhanced, and monitored algorithms for sales forecasting using advanced ๐—ฝ๐˜†๐˜๐—ต๐—ผ๐—ป machine learning models like Random Forest and XGBoost, as well as time series techniques. This model served as a reference for the construction of over 100 drugstores within a single year. โ€ข ๐— ๐—ผ๐—ฑ๐—ฒ๐—น ๐——๐—ฒ๐—ฝ๐—น๐—ผ๐˜†๐—บ๐—ฒ๐—ป๐˜ ๐—ฎ๐—ป๐—ฑ ๐— ๐—ผ๐—ป๐—ถ๐˜๐—ผ๐—ฟ๐—ถ๐—ป๐—ด: Oversaw the deployment and continuous improvement of machine learning models for new sites. Created robust data pipelines to ensure seamless deployment of ML models in production environments. โ€ข ๐—ž๐—ฃ๐—œ ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—บ๐—ฒ๐—ป๐˜ ๐—ฎ๐—ป๐—ฑ ๐—ฉ๐—ถ๐˜€๐˜‚๐—ฎ๐—น๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป: Monitored and constructed Key Performance Indicators (KPIs) using Tableau to provide actionable insights and drive strategic decision-making. โ€ข ๐—˜๐˜…๐—ฝ๐—ฒ๐—ป๐˜€๐—ฒ ๐—”๐—ป๐—ผ๐—บ๐—ฎ๐—น๐˜† ๐——๐—ฒ๐˜๐—ฒ๐—ฐ๐˜๐—ถ๐—ผ๐—ป: Developed an anomaly detection system for expenses using various Python libraries such as pyOD, sklearn (including isolation forest, outlier measurement, and kurtosis), pycaret, and scipy, ensuring financial integrity and identifying potential issues promptly. โ€ข ๐—˜๐—ฐ๐—ผ๐—ป๐—ผ๐—บ๐—ถ๐—ฐ ๐—ฉ๐—ถ๐—ฎ๐—ฏ๐—ถ๐—น๐—ถ๐˜๐˜† ๐—ฆ๐—ถ๐—บ๐˜‚๐—น๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€: Engineered dynamic simulations for economic viability analysis through an automated pipeline that continuously updates assumptions and delivers all critical financial KPIs for informed decision-making.
Data Scientist Specialist
Pague Menos DrugstoreData Scientist Specialist
Feb. 2020 - Jan. 2022Fortalezaโ€ข ๐——๐—ฎ๐˜๐—ฎ ๐—ฅ๐—ฒ๐—ฝ๐—ผ๐˜€๐—ถ๐˜๐—ผ๐—ฟ๐˜† ๐——๐—ฒ๐˜€๐—ถ๐—ด๐—ป ๐—ฎ๐—ป๐—ฑ ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—บ๐—ฒ๐—ป๐˜: Designed and developed a data pipeline using ๐—ฝ๐˜†๐˜๐—ต๐—ผ๐—ป models to construct a data repository incorporating the company's financial modeling. Successfully migrated to a new architecture that reduced total processing time from 1 day to 30 minutes. โ€ข ๐—ž๐—ฃ๐—œ ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—บ๐—ฒ๐—ป๐˜ ๐—ฎ๐—ป๐—ฑ ๐—•๐—œ ๐——๐—ฎ๐˜€๐—ต๐—ฏ๐—ผ๐—ฎ๐—ฟ๐—ฑ๐˜€: Created Key Performance Indicators (KPIs) and implemented them in dashboards using Tableau as the Business Intelligence (BI) tool, significantly enhancing data visualization and decision-making processes. โ€ข ๐—˜๐˜…๐—ฝ๐—น๐—ผ๐—ฟ๐—ฎ๐˜๐—ผ๐—ฟ๐˜† ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜€๐—ถ๐˜€: Conducted extensive exploratory data analysis utilizing data from various company sectors, including sales, products, finance, and expansion, providing comprehensive insights to stakeholders. โ€ข ๐——๐—ฎ๐˜๐—ฎ๐—ฏ๐—ฎ๐˜€๐—ฒ ๐—–๐—ผ๐—ป๐˜€๐˜๐—ฟ๐˜‚๐—ฐ๐˜๐—ถ๐—ผ๐—ป ๐—ณ๐—ฟ๐—ผ๐—บ ๐—”๐˜€๐˜€๐—ผ๐—ฟ๐˜๐—บ๐—ฒ๐—ป๐˜ ๐—œ๐—ป๐—ณ๐—ผ๐—ฟ๐—บ๐—ฎ๐˜๐—ถ๐—ผ๐—ป: Developed data pipelines for constructing a database derived from assortment information, SKUs, etc., ensuring data integrity and accuracy for better inventory management and operational planning. โ€ข ๐——๐—ฎ๐˜๐—ฎ ๐—ฃ๐—ถ๐—ฝ๐—ฒ๐—น๐—ถ๐—ป๐—ฒ ๐—ข๐—ฏ๐˜€๐—ฒ๐—ฟ๐˜ƒ๐—ฎ๐—ฏ๐—ถ๐—น๐—ถ๐˜๐˜†: Implemented observability practices to monitor data pipelines, ensuring real-time tracking and rapid identification of issues, leading to more reliable and efficient data processing. โ€ข ๐——๐—ฎ๐˜๐—ฎ ๐—ค๐˜‚๐—ฎ๐—น๐—ถ๐˜๐˜† ๐—”๐—ป๐—ฑ ๐—ฉ๐—ฎ๐—น๐—ถ๐—ฑ๐—ฎ๐˜๐—ถ๐—ผ๐—ป: Ensured data quality through rigorous testing and validation processes, maintaining high standards of data integrity across all projects.
Data Scientist
SiMCoData Scientist
Jan. 2018 - Feb. 2020Fortalezaโ€ข ๐——๐—ฎ๐˜๐—ฎ ๐—ฃ๐—ถ๐—ฝ๐—ฒ๐—น๐—ถ๐—ป๐—ฒ ๐——๐—ฒ๐˜€๐—ถ๐—ด๐—ป ๐˜‚๐˜€๐—ถ๐—ป๐—ด ๐—ฃ๐˜†๐˜๐—ต๐—ผ๐—ป ๐—ฎ๐—ป๐—ฑ ๐—ฆ๐—ค๐—Ÿ: Utilized Python and SQL to build data pipelines that supported the creation of a comprehensive financial database, optimizing data retrieval and analysis processes. โ€ข ๐—–๐—น๐˜‚๐˜€๐˜๐—ฒ๐—ฟ๐—ถ๐—ป๐—ด ๐— ๐—ฎ๐—ฐ๐—ต๐—ถ๐—ป๐—ฒ ๐—Ÿ๐—ฒ๐—ฎ๐—ฟ๐—ป๐—ถ๐—ป๐—ด ๐— ๐—ผ๐—ฑ๐—ฒ๐—น๐˜€ ๐—ณ๐—ผ๐—ฟ ๐—ฃ๐—ฒ๐—ฟ๐˜€๐—ผ๐—ป๐—ฎ ๐—–๐—ผ๐—ป๐˜€๐˜๐—ฟ๐˜‚๐—ฐ๐˜๐—ถ๐—ผ๐—ป: Developed and implemented clustering machine learning models for persona construction, enhancing marketing strategies and customer segmentation. โ€ข ๐—˜๐—ป๐—ฑ-๐˜๐—ผ-๐—˜๐—ป๐—ฑ ๐——๐—ฎ๐˜๐—ฎ ๐—ฃ๐—ถ๐—ฝ๐—ฒ๐—น๐—ถ๐—ป๐—ฒ ๐—”๐˜‚๐˜๐—ผ๐—บ๐—ฎ๐˜๐—ถ๐—ผ๐—ป: Designed and automated end-to-end data pipelines for seamless data integration and consumption in BI tools, leading to improved reporting and decision-making. โ€ข ๐—–๐—ฟ๐—ผ๐˜€๐˜€-๐—™๐˜‚๐—ป๐—ฐ๐˜๐—ถ๐—ผ๐—ป๐—ฎ๐—น ๐—–๐—ผ๐—น๐—น๐—ฎ๐—ฏ๐—ผ๐—ฟ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ณ๐—ผ๐—ฟ ๐——๐—ฎ๐˜๐—ฎ ๐—œ๐—ป๐˜๐—ฒ๐—ด๐—ฟ๐—ถ๐˜๐˜†: Collaborated with cross-functional teams to ensure data integrity and accuracy, significantly boosting the reliability of business insights.
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