Marcelo Junio Carvalho De Espíndola
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Marcelo Junio Carvalho De Espíndola

Marcelo Junio Carvalho De Espíndola

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Data Engineer | Machine Learning Engineer
Brasília, Federal District, Brazil

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  • Jump
    Engenheiro de dados
    Jump
    Apr 2024 - Sep 2025 (1 year 6 months)
    Data Engineer – Consulting at Banco Bradesco S.A. (Jun/2024 – Sep/2025) Worked as a Data Engineer consultant allocated at Banco Bradesco S.A., leading end-to-end data engineering initiatives in two strategic programs: Public Sector (Poder Público) and Hedge Accounting. Responsible for the entire development, testing, and production pipeline, across both on-premises environments and the Databricks Lakehouse platform. 🔹 Public Sector Project (Poder Público) Designed and maintained large-scale data ingestion and transformation pipelines for public institutions, ensuring data quality, standardization, and regulatory compliance. Modeled and optimized critical datasets to prevent redundancy and improve analytical performance. Key technologies: P
  • AI.lab UnB
    Data/ML Engineer
    AI.lab UnB
    Sep 2022 - Mar 2024 (1 year 7 months)
    Title: Data/ML Engineer Company: AIlab (AI Lab), University of Brasília (UnB) Employment dates: Sep 2022 – Mar 2024 Location: Brasília, Brazil Description: SABIA Project (in collaboration with the Superior Labor Court – TST): centralized legal case aggregation, jurisprudence identification, and integrated LLM subsystems for insights. • Designed and operated data pipelines with PySpark/HDFS; built multi-source ETL (incl. APIs) into SQL and MongoDB • Generated BERT embeddings; applied KMeans/DBSCAN for case clustering/classification • Validated and optimized ML models via hyperparameter tuning; tracked experiments with MLflow • Performed large-scale EDA (Pandas/Spark) with outlier treatment and automated data-quality checks • Orchestrated wor
  • BTG Pactual
    Summer intern
    BTG Pactual
    Sep 2021 - Jan 2022 (5 months)
    • Developed automations to optimize banking processes, focusing on reducing time and resources for repetitive, high-volume operations, resulting in increased efficiency and agility in internal processes. • Programmed back-end solutions and created robust APIs in Python, ensuring scalability and seamless integration with other internal and external systems. • Built interactive dashboards in Power BI, providing strategic financial insights and supporting decision-making with a focus on usability and clarity in data presentation. • Implemented solutions on the AWS platform to enhance automation infrastructure, leveraging services like AWS Lambda, S3, and RDS to optimize performance and reduce operational costs. • Performed financial data extra
  • Universidade de Brasília
    Monitor de Calculo 2
    Universidade de Brasília
    Jul 2021 - Dec 2021 (6 months)
    • Served as a Calculus II Teaching Assistant, taking on the role of an academic leader and mentor for peers. • Assisted students in grasping complex mathematical concepts and guided them in practically applying these concepts to real-world problems, fostering a deeper understanding of advanced calculations and analytical skills. • Contributed to significant academic improvements, with many students achieving notable progress in grades and overall performance. • Developed strong communication skills, essential for conveying complex analyses in a clear and accessible manner to diverse audiences. • Enhanced leadership and teamwork abilities by facilitating academic discussions and simplifying challenging concepts. • Gained practical experience
Education verified_user 0% verified
  • Universidade de Brasília
    Universidade de Brasília — Bacharelado, Computer Science
    Universidade de Brasília
    Jan 2021 - Dec 2025 (5 years)
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