Bernardo Cruz

Experience

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  Personal Paraguay

  Apr 2012 - Sept 2016

  Data Mining Analyst

  Served as a BI developer, leveraging data mining techniques and advanced analytics to extract valuable insights from large datasets.Executed KDD (Knowledge Discovery in Databases) projects following the CRISP-DM standard, encompassing tasks such as data understanding, data preparation, modeling, evaluation, and deployment.Prepared custom analytics reports based on comprehensive analysis of large datasets, enabling data-driven decision-making for stakeholders.Conducted research on open-source technologies to manipulate and analyze large datasets effectively. Explored technologies such as PostgreSQL, Postgres-XL, Hive, and the Hadoop stack.Successfully migrated KDD model implementations from Oracle databases to Microsoft SQL Server databases, ensuring seamless integration and optimal performance. Show less

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  Equifax - Paraguay

  Oct 2016 - Dec 2021

  Aligned data management efforts with organizational goals and requirements through cross-functional collaboration.Designed and managed data integration for seamless and efficient data flow across systems, databases, and applications.Established and maintained data quality standards, conducting assessments and addressing data quality issues.Optimized data storage and minimized risks through defined data lifecycle strategies (retention policies).Ensured compliance with data regulations, industry standards, and internal policies, mitigating data-related risks.Created and maintained data documentation, including dictionaries and process documentation, for enhanced understanding and traceability. Show less Collaborated with cross-functional teams to gather business requirements and understand data generation processes.Applied advanced data manipulation techniques in R, SQL, and Python to transform raw data for modeling and analysis.Conducted exploratory data analysis (EDA) to identify patterns and inform feature selection.Developed attributes for statistical models to enhance performance and predictive capabilities.Tracked and evaluated credit score model performance for accuracy and stability.Provided strategic insights and recommendations from data analysis and modeling.Designed and developed user-friendly data products and interfaces.Created concise and impactful presentations for senior managers, conveying analytical findings and business implications. Show less

  • Data Management Specialist

    Mar 2021 - Dec 2021

  • Data Analytics Analyst

    Oct 2016 - Mar 2021
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  MentorMate

  Dec 2021 - now

  Data Engineer

  Developed and maintained robust data pipelines for ingesting large volumes of data into Delta Lake, ensuring data integrity and reliability.Designed and implemented efficient ETL processes to transform raw data into standardized formats for downstream analysis and consumption.Implemented data quality checks, error handling mechanisms, and monitoring solutions to identify and resolve issues proactively.