Chuanrun(Galaxy) Zhang

Chuanrun(galaxy) zhang

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location of Chuanrun(Galaxy) ZhangToronto, Ontario, Canada
Phone number of Chuanrun(Galaxy) Zhang+91 xxxx xxxxx
Followers of Chuanrun(Galaxy) Zhang78 followers
  • Timeline

    Mar 2022 - Sept 2022

    Data Analyst

    Fintelics
    Sept 2022 - Sept 2023

    Data Engineer

    Purolator Inc.
    Current Company
    Sept 2023 - Apr 2024

    Software Engineer

    Voithos Labs Inc.
  • About me

    Data Engineer | Computer Science, Statistics

  • Education

    • University of toronto

      2019 - 2024
      Bachelor of science - bs computer science and statistics
  • Experience

    • Fintelics

      Mar 2022 - Sept 2022
      Data analyst

      • Managed large-scale data using Azure Data Lake and Databricks by converting file structures from CSV to Parquet, reducing file sizes by 60% and improving data storage and processing performance.• Constructed end-to-end data pipelines using Python to clean and process raw client data, partitioning the data by time (month, year) for optimizing query and data processing performances.• Implemented data quality assurance using SQL queries, validating data integrity by checking for missing values, duplicates, which improved data accuracy and reliability in the pipeline. Show less

    • Purolator inc.

      Sept 2022 - Sept 2023
      Data engineer

      • Designed and implemented a fully automated Cost and Usage Report system with AWS services to streamline financial tracking, following Agile. Created a System Architecture Diagram with detailed annotations.• Built PySpark-based ETL pipelines, processing over 30 million records from Amazon weekly. Ensured data integrity during migration from S3 to Redshift Serverless, improving data processing efficiency by 20%.• Architected event-driven data workflows using AWS Step Functions and EventBridge. Introduced proactive alert systems, reducing troubleshooting time by 40% and cutting manual intervention to near-zero.• Created real-time interactive dashboards using Power BI and AWS Quicksight, which provided key insights that helped reduce cloud costs and informed critical resource allocation decisions. Show less

    • Voithos labs inc.

      Sept 2023 - Apr 2024
      Software engineer

      • Collaborated with data scientists and engineers to develop an AI powered note-taking application. Built reusable and scalable frontend components(e.g. search bar, to-do list, calendar), seamlessly integrating GPT models.• Designed a document-based schema in MongoDB, optimizing core data models into separate collections with referencing strategies, enhancing scalability and performance for a high-demand note-taking app.• Utilized Snowflake’s VARIANT data type to handle schema mismatches in cloud backup for application note data stored in JSON format, ensuring seamless storage and transformation of semi-structured data. Show less

  • Licenses & Certifications

    • Aws billing and cost management

      Amazon web services (aws)
      Oct 2022
    • Sas certified base programmer for sas 9 (cbp)

      Sas
      Jul 2020
      View certificate certificate
    • Aws cloud practitioner essentials

      Amazon web services (aws)
      Sept 2022
    • Aws glue

      Amazon web services (aws)
      Oct 2022
  • Honors & Awards

    • Awarded to Chuanrun(Galaxy) Zhang
      Best Statistical Analysis win at DataFest Department of Statistical Sciences May 2022
    • Awarded to Chuanrun(Galaxy) Zhang
      Dean's List Scholar - Sep 2021
    • Awarded to Chuanrun(Galaxy) Zhang
      University of Toronto Scholarship - Sep 2019
    • Awarded to Chuanrun(Galaxy) Zhang
      Top 25% in Euclid Mathematics Contest University of Waterloo 2019