Mariana Lemos

Software Engineer | .NET • C# • SQL • AWS

São Paulo, Brazil

About

Science lover building tech solutions for real-world problems. • https://github.com/mariananlemos •

Experience

  • Business Intelligence Analyst at Boston Scientific
    Apr 2026 - Jun 2026 · 3 mos

    Built Tableau dashboards to monitor KPIs and business performance, supporting data-driven decision-making. Conducted data analysis to identify optimization opportunities, including Opex tracking.

  • Business Analyst at Itaú Unibanco
    Jul 2024 - Mar 2026 · 1 yr 9 mos

    Built ETL pipelines using AWS Glue and S3, and analyzed customer behavior and performance data with Athena and SQL for Daily Banking products. Developed dashboards in QuickSight to monitor KPIs and support customer segmentation, helping guide business decisions.

  • Customer Relationship Management Analyst at Jüssi
    Jul 2023 - Feb 2024 · 8 mos