Luiz R.

Data Engineering

Luiz is a highly skilled Data Engineer with five years of commercial experience. He specializes in data engineering and machine learning, with a strong focus on code optimization and reproducibility.

Luiz has worked in various industries, including retail, eCommerce, financial operations, sales, and real estate in Brazil.

His expertise includes text processing, sentiment analysis, and infrastructure design. Luiz has optimized ETLs, improved queries, and PySpark code, and implemented table partitioning. He has a proven track record of implementing innovative solutions, such as a StableDiffusion-based application for image enhancement and an XGBoost model for predicting buyer visit-scheduling probability.

Hovedekspertise

  • Apache Spark
    Apache Spark 4 år
  • Data Engineering 4 år
  • Databricks
    Databricks 1 år

Andre kunnskaper

  • Scala
    Scala 1 år
Luiz

Luiz R.

Brazil

Kom i gang

Utvalgt opplevelse

Arbeidserfaring

  • Data Engineer | Data Scientist

    Loft - 1 year 1 month

    • Refined the team’s entire code structure, improving performance and code/ML reproducibility.
    • Improved several ETLs by optimizing queries, PySpark code, and table partitioning.
    • Worked with other engineering teams to map and define multiple improvement points for the entire Data Chapter.
    • Researched and implemented a StableDiffusion-based application to "decorate" apartment photos.
    • Created an XGBoost-based model to predict buyers’ visit-scheduling probability over time.
    • Created and maintained multiple interactive data-viz prototypes using Streamlit and ML models for the Business Intelligence area.
    • Defined and deployed multiple model APIs to production through a SageMaker layer alongside the MLOps team.

    Teknologier:

    • Teknologier:
    • Data Science
    • Pandas Pandas
    • DataDog DataDog
    • Scikit-learn Scikit-learn
    • Machine Learning Machine Learning
    • Swagger Swagger
    • Streamlit Streamlit
    • Plotly Plotly
    • dbt dbt

  • Data Engineer | Data Scientist

    Dextra Consulting - 1 year 2 months

    • Created text-processing PySpark jobs for multiple client pipelines on a lakehouse architecture.
    • Designed and implemented a highly available infrastructure for a speech-to-text and text-processing engagement using GCP (Dataproc, R-MIG, Compute Engine, Firebase, Cloud Function, Build, and Run).
    • Supported and developed machine learning models for sentiment analysis.
    • Contributed to the creation of several PySpark jobs for multiple text-processing pipelines for different clients on a lakehouse architecture.

    Teknologier:

    • Teknologier:
    • Pandas Pandas
    • Scikit-learn Scikit-learn

  • Data Engineer

    Samsung Electronics - 8 months

    • Automated data extraction procedures using a distributed architecture with Apache Airflow and Docker.
    • Created Spark jobs for data indexing and logging of metadata, including relational database architecture and modeling for event logging.
    • Automated procedures and ETLs using Bash, Python, and Docker.
    • Developed database-interface APIs using Node.js.

    Teknologier:

    • Teknologier:
    • Pandas Pandas

  • Data Scientist

    Grupo SOMA - 5 months

    • Implement a cluster using Kubernetes (GKE) to orchestrate dockerized ETLs in Python.

    • Creation of a scalable development platform used for several engagements using Jupyter Hub hosted in a cluster with Kubernetes.

    • Development of a workshop on data science, machine learning models, and their applications.

    • Implement a supervised model to predict sales of new products based on historical data and visual characteristics, with direct development on the whole machine learning chain, from data processing to serving the model through a REST API using Flask.

    • Establishment of a workflow to analyze and compare machine learning models using MLFlow.

    Teknologier:

    • Teknologier:
    • Data Science
    • Pandas Pandas
    • Scikit-learn Scikit-learn
    • Machine Learning Machine Learning

Utdannelse

  • MSc.Electrical Engineering

    Federal University Of Rio de Janeiro · 2017 - 2019

  • BSc.Electronics and Computer Engineering

    Federal University Of Rio de Janeiro · 2013 - 2019

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