Alex Pierini

Alex Pierini

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Senior Data Engineer | Python | Spark | GCP | BigQuery | SQL | Data Platforms
Rio de Janeiro, Brazil
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Full-time jobs
Starting at USD3.5k/month
Flexible work
Starting at USD25/hour
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Timeline

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Résumé

Jobs verified_user 0% verified
  • IBM
    Data Engineer
    IBM
    Mar 2022 - Current (4 years 3 months)
    • Delivered Data Analytics and BI solutions for large enterprises including Globo, Oi Telecom, and V.tal. • Designed and maintained scalable ETL/ELT pipelines integrating multiple enterprise systems. • Built reliable datasets powering analytics platforms, dashboards, and data warehouse environments. • Optimized SQL queries and data pipelines improving performance and reducing cloud infrastructure costs. • Processed large-scale datasets using Spark, BigQuery, and Dataproc within Google Cloud Platform. • Implemented data orchestration workflows using Airflow/Composer and infrastructure automation with Terraform.
  • IBM
    Big Data Engineer
    IBM
    Aug 2020 - Apr 2022 (1 year 9 months)
    • Developed and maintained large-scale ETL/ELT pipelines using Informatica PowerCenter, PySpark, and Hive. • Engineered ingestion workflows into Hadoop-based Data Lake environments. • Migrated large on-premise datasets to cloud environments using distributed processing frameworks. • Worked within the Hadoop ecosystem including Cloudera, Hive, and Spark for large-scale data processing.
  • IBM
    Associate Data Engineer
    IBM
    Apr 2019 - Aug 2020 (1 year 5 months)
    As an Associate Data Engineer, I developed ETL pipelines using Informatica PowerCenter and shell scripting for telecom data platforms, ensuring efficient data processing and integration. I maintained enterprise data warehouse environments utilizing Teradata and Oracle ODS, while also crafting complex SQL queries across multiple databases, including Oracle, Teradata, PostgreSQL, and MySQL. My role involved collaboration within Agile teams, leveraging Git and CI/CD workflows to enhance project delivery. Additionally, I applied my experience with Python in data engineering tasks, which complemented my academic background in Java, allowing for a broader understanding of programming concepts that support data pipeline development and optimizatio
Education verified_user 0% verified
  • E
    EF SET English Certificate
    May 2023 - Current (3 years 1 month)
    C2 Proficient
  • E
    Enterprise Design Thinking Practitioner
    Jun 2020 - Current (6 years)
  • P
    Python for Data Science
    Feb 2020 - Current (6 years 4 months)
  • Universidade Veiga de Almeida
    Bachelor's Degree in Computer Science
    Universidade Veiga de Almeida
    Jan 2014 - Dec 2020 (7 years)