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Itaira SantosIS

Itaira Santos

Data Analyst Engineer | SQL | Python

€250/day
Amsterdam, NL
3-7 years

Average response time: 1 hour

About Itaira

Technical Data Analyst with expertise in SQL, Python, and ETL processes, delivering scalable data solutions and automated pipelines. Achieved 25% faster project timelines and 60% improved data processing efficiency. Consolidated tasks with 80% efficiency improvements, enhancing backend workflows. Developed Power BI dashboards and Big Data solutions to support decision-making. I am passionate about solving complex data challenges and transforming raw information into actionable insights
  • Portuguese

    Native or bilingual

  • Dutch

    Basic

  • English

    Conversational

Can work on-site
Amsterdam (up to 50km)

Experience

  • Banco do Nordeste do Brasil - BNB
    Business Intelligence and ETL Developer
    January 2021 - June 2023 (2 years and 5 months)
    Fortaleza - Ceará, Brazil
    • Improved English and Dutch skills by attending courses.
    • Earned Microsoft certifications: AZ-900 and PL-300.
    • Completed online technical courses (Azure, Python, Bash Linux, Advanced SQL, Databricks).
    • Volunteering as a PHP web developer at Watkanikdoen.nl, contributing to community-driven projects.

    Business Intelligence and ETL Developer - Banco do Nordeste do Brasil – BNB, Fortaleza, Brazil
    Jan 2021 – Jun 2023

    • Designed and implemented data modeling and ETL workflows to calculate a Risk Indicator required for deploying the newly acquired Market and Capital Risk management system, which resulted in a 30% increase in Operational Efficiency KPIs in the following quarter.
    • Developed and tested ETL workflows to integrate 15 legacy system tables into the new ERP system for Human Resources, completing 100% of planned jobs and deploying 40% to production within two weeks, ensuring seamless data migration and meeting critical project deadlines.
    • Designed and implemented a centralized tracking solution by integrating tasks from Azure Kanban, RTC business requests, and Service Orders into a Power BI dashboard, improving communication and negotiation with stakeholders and increasing the on-time completion rate of business demands by 20% within two months.
    • Orchestrated the development of a Power BI solution for lead management, consolidating data from multiple sources. Achieved 40% lead database effectiveness in the first month, optimizing contacts and business opportunities.
    • Collaborated in the development of a Power BI solution to download, process, and analyze nationwide survey data, replacing inefficient legacy workflows with Python (Pyodbc, psycopg2, zipfile, Pandas, Numpy), DataStage, and PostgreSQL within a Dockerized Linux environment. Improved data automation and processing efficiency, achieving a 60% reduction in data manipulation time.
  • BNB
    CDD Analyst for Credit Risk Analysis
    January 2020 - January 2021 (1 year)
    Fortaleza - Ceará, Brazil
    • Evaluated and approved a 200,000 reais credit proposal for a food distribution company during the pandemic, ensuring compliance, repayment capacity, and collateral adequacy. This contributed to 30% of the agency's monthly credit target and enabled the client to acquire a new truck.
    • Conducted a thorough analysis of corporate constitutive documents for a medium-sized business, enabling the proposal to advance to the credit committee in just 2 days, compared to the expected 10, achieving an 80% improvement in credit approval time.
    • Prepared a detailed technical report based on internal regulations, supporting the approval of a BNB investment card of R$ 500,000 for a medium-sized textile company. My analysis focused on compliance with internal guidelines, ensuring risk mitigation for the bank and facilitating the client's production capacity expansion by 25%
    • Conducted a technical analysis for a R$ 300K credit operation, validating a R$ 20M property as collateral. Ensured legal compliance and risk mitigation while confirming the asset's capacity to support an existing R$ 2M operation and the new proposal.
  • Banco do Nordeste do Brasil - BNB
    Business Intelligence and ETL Developer
    October 2010 - January 2020 (9 years and 3 months)
    Fortaleza - Ceará, Brazil
    • Implemented a Balanced Scorecard-aligned Data Mart, improving KPI tracking and boosting branches exceeding expected results by 25% within six months,using IBM Cognos 10 Tools(Data Manager, Cognos Framework) and MSSQL to build.
    • Designed and deployed ETL workflows to support profitability calculations, improving accuracy by 40%, using IBM Cognos 10 Tools(Data Manager, Cognos Framework) and MSSQL to build.
    • Developed a profitability analysis Cube using Cognos Framework Manager, Cognos Transformer, and SQL Server, enabling detailed tracking of net margin (%) by customer, product, and branch. Delivered a 10% increase in overall profitability within six months of implementation.

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Education

  • Master of Business
    Fortaleza University
    MBA in IT Governance -
  • Bachelor of Science
    University of Ceará
    Bachelor of Computer Science -

Certifications

Skill set

Categories