Samuel Carreira

Independent consulting in data, BI, analytics engineering, and automation, structuring analytical solutions to transform scattered data into reliable information for decision-making. Built ETL/ELT pipelines, analytical models, dashboards, and applications using Python, SQL, dbt, DuckDB, PostgreSQL, Power BI, and Streamlit.

Implemented OCS Inventory across stores, centralizing hardware and software inventory and reducing time to locate and verify information by about 80%. Integrated data from operating systems, POS, ERP, and inventory using SQL and corporate tools, reducing manual consolidation effort by about 30%.

Organized and consolidated financial and commercial information in Excel and corporate systems, reducing data consolidation and verification time by about 20%. Compared actual results, targets, and previous periods, producing periodic reports that made identifying variations and deviations about 20% faster.

Structured commercial performance indicators, goals, sales, and revenue to support management monitoring. Processed and validated data using SQL, Excel, Python, and pandas, and automated reporting routines, reducing manual effort in preparing commercial information by about 30%.

Evolved from internal financial area activities to backoffice and customer service for individuals and businesses, handling requests, operational processes, documentation, and demands in banking systems. Analyzed customer registration information and situations to direct requests, clarify doubts, and support resolution of demands.

Pursuing a postgraduate degree in Innovation and Digital Transformation, with expected completion in December 2026.

Completed a Python programming course from basic to advanced, with 64 hours, in April 2026.

Completed a postgraduate degree in Data Science in April 2026.

Completed the AWS re/Start program, covering cloud fundamentals, AI, and no-code, with a total of 270 hours, in July 2026.

Completed a Bachelor's degree in Business Administration in July 2024.

Completed a course on dbt for creating and executing data engineering pipelines, with 4.5 hours, in April 2026.

Completed a comprehensive Power BI course from basic to advanced, with 9 hours, in September 2025.