Open to opportunities

Guilherme User

@guilhermeuser2

Message

I’m a SQL Developer and Computer Science student focused on data engineering and analytics evolution.

Brazil

Message

What I'm looking for

I’m looking for a role where I can grow in SQL, data, and analytics engineering—building database-driven solutions, improving ETL/automation, and supporting decision-making with strong data modeling and warehouse practices.

I’m a Computer Science student with experience at ONS, building web applications integrated with SQL Server to support internal teams. I focus on extracting, validating, and analyzing data through well-structured SQL queries and internal process automation.

At ONS, I helped automate manual activities to improve operational efficiency, and I contributed to data-driven solutions for decision-making. I also supported requirements gathering with business areas and documented internal applications.

My professional growth goal is to evolve in SQL, data, and analytics engineering, with a strong base in relational databases, data modeling, and Data Warehouse concepts. I’m excited to keep expanding my work in areas like OLTP/OLAP, logical/physical modeling, and modern warehouse approaches such as Kimball and Data Vault.

Experience

Work history, roles, and key accomplishments

Current

Young Apprentice

Current

National Electric System Operator (ONS)

Jan 2026 - Present (6 months)

Developed web applications integrated with SQL Server to support internal areas. Created SQL queries for data extraction, manipulation, validation, and analysis, and automated internal processes to support decision-making.