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Alex M Lee

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Lead Data Engineer at Airbnb
Irving, Texas, United States
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Résumé

Jobs verified_user 0% verified
  • L
    Lead Data Engineer
    Jun 2022 - Current (4 years 5 months)
    • Achieved sub-10-minute latency for serving (Snowflake) and ingesting data (Kafka, Debezium) by building a multi-region data lake on AWS to provide near real-time scalable data access
    • Standardized and streamlined the deployment processes and enhanced the dependability of the platform by promoting the use of GitLab CI, Argo CD and Terraform
    • Ensured consistent data replication and integrity by designing an algorithm to simulate MySQL delete cascade rules starting from CDC events
    • Produced reliable and documented data assets by introducing the CRISP-DM framework
  • Tecton
    Data Engineer
    Tecton
    Sep 2021 - May 2022 (9 months)
    • Reduced issue tickets by 60% by introducing the team to test-driven development, ensuring higher quality code and the effective processing of semi-structured data with Spark (Scala)
    • Guaranteed 100% accuracy of the company data assets by advocating for tools like Deequ, addressing a gap in data quality checks in ETL pipelines
    • Increased user engagement by 30% on the mobile app by guiding data analysts and scientists in evaluating A/B test results from over 100 experiments
    • Standardized machine learning deployments by leveraging BentoML to create a CI/CD process
  • Instacart
    Data Engineer
    Instacart
    Jan 2017 - May 2021 (4 years 5 months)
    • Reduced machine failures by 15% by enabling proactive maintenance by ingesting and processing machinery data via data pipelines and creating monitoring dashboards (Angular, D3.js)
    • Generated an additional $5 million in revenue by designing a recommendation system using PySpark ML to feed marketing campaigns through a reverse ETL pipeline
    • Reduced support tickets by 35% by leading a team of 8 to strengthen the foundation of the data platform of a retail customer using EMR, Spark, Delta Lake, and Airflow
    • Reduced bugs by 80% and lead time by 50% by mentoring the data science team of a retail customer through pair programming sessions focused on test-driven development and clean code principles
    • Increased by
Education verified_user 0% verified
  • University of Texas
    Bachelor of Computer
    University of Texas
    May 2012 - May 2016 (4 years 1 month)