index.html

---
layout: a2c
title: Ganyu Xu's resume
resume:
  name: Ganyu Xu
  title: software engineer
  contacts:
    - href: "tel:6043295822"
      bi-icon: bi-telephone
      text: "604-329-5822"
    - href: "mailto:xuganyu96@gmail.com"
      bi-icon: bi-envelope
      text: "xuganyu96@gmail.com"
    - href: "https://github.com/xuganyu96"
      bi-icon: bi-github
      text: "xuganyu96"
    - href: "https://linkedin.com/in/ganyu-bruce-xu"
      bi-icon: bi-linkedin
      text: "/in/ganyu-bruce-xu"
  skills:
    - <span class="fs-6">Rust</span><br>
    - <span class="fs-6">Cryptography</span><br>
    - <span class="fs-6">Python 3</span><br>
    - <span class="fs-6">Data engineering</span><br>
      <span class="text-secondary">Apache Airflow</span><br>
      <span class="text-secondary">Relational database (SQL)</span><br>
      <span class="text-secondary">AWS S3, Athena, RDS</span><br>
    - <span class="fs-6">AWS Serverless Stack</span><br>
      <span class="text-secondary">API Gateway, SQS, Lambda</span><br>
      <span class="text-secondary">Elastic Container Service</span><br>
    - <span class="fs-6">Linux server deployment</span><br>
      <span class="text-secondary">Containerization, shell scripting</span><br>
      <!-- <span class="text-secondary">Shell scripting</span><br> -->
    - <span class="fs-6">Web development</span><br>
      <span class="text-secondary">Flask, Django</span><br>
      <span class="text-secondary">HTM, CSS, JS, Bootstrap 5</span> <br>
  education:
    - school: "University of Waterloo"
      duration: "Sep, 2023 - Present"
      degrees:
      - "Master of Applied Science"
      - "Electrical and Computer Engineering"
    - school: "U of California, Berkeley"
      duration: "Aug, 2015 - May, 2019"
      degrees:
      - "Bachelor of Arts"
      - "Mathematics and Statistics"
  experiences:
    - title: "Senior data engineer"
      duration: "July, 2019 - Sept, 2023"
      employer: "LeanTaaS Inc."
      location: "Santa Clara, CA"
      highlights:
      - <b>Automated business analytics and legacy manual workflow</b> for operioperative management in 100+ healthcare systems throughout the US
      - <b>Improved ETL pipeline scalability</b> by migrating data ingestion from PostgreSQL to AWS S3 and moving Airflow's workers from EC2 to ECS
      - <b>Accelerated enterprise customer onboarding</b> by automating manual data quality review, cutting onboarding timeline from 4 months to 1 month
      - <b>Increased developer productivity</b> by containerizing development environment, building unit testing framework, and integrating CI/CD practices
      - <b>Reduced pipeline downtime</b> by implementing service availability monitoring and engineer on-call alarms via DataDog
      - Recruited and mentored junior developers through project design review, pair programming, and technical workshops
    - title: RustCrypto
      highlights:
      - Implemented constant-time arithmetic for heap-allocated big integers in cryptographic bigint crate <strong>crypto-bigint</strong>
      - Expanded prime generation for heap-allocated big integers in <strong>crypto-primes</strong>
      - Automated side-channel vulnerability analysis in RSA implementation
    - title: rustls
      highlights:
      - Identified incorrect TLS termination at google.com and fixed the example binaries to connect to other properly working TLS server
    - title: Apache Airflow
      highlights:
      - Fixed improper exception handling in Python multiprocessing that causes the scheduler to become zombie instead of exiting
      - "Fixed incorrect DagRun list view serialization that causes the webapp to crash when DagRun config is not JSON-serializable"
      - Implemented user-specified retries for "airflow db check"
    - title: Flask-AppBuilder
      url: https://github.com/dpgaspar/Flask-AppBuilder
      highlights:
      - "Refactored logging infrastructure to use proper lazy logging"
    - title: PyAthena
      url: https://github.com/laughingman7743/PyAthena
      highlights:
      - Fixed compatibility issues between PyAthena and SQLAlchemy 1.4
    - title: Asymmetric two columns (A2C)
      url: https://github.com/xuganyu96/asymmetric-two-columns
      highlights:
      - Custom-built resume templates using Jekyll and Bootstrap 5
      # - Asbtracted resume format and styling into a Jekyll theme built on Bootstrap 5
      - <strong>This resume you are reading</strong> is built using A2C
  projects:
    - title: Mitigating timing-variability in RustCrypto/RSA
      url: https://github.com/RustCrypto
      highlights:
      - Implemented constant-time arithmetic for heap-allocated big integers in cryptographic bigint crate <strong>crypto-bigint</strong>
      - Expanded prime generation for heap-allocated big integers in <strong>crypto-primes</strong>
      - Automated Marvin attack analysis in crate <strong>RustCrypto/RSA</strong>
    - title: Apache Airflow
      url: https://github.com/apache/airflow
      highlights:
      - "Fixed improper multiprocessing exception handling that causes Airflow scheduler to become zombie while the scheduler health checks become unresponsive"
      - "Fixed incorrect DagRun list view serialization that causes the webapp to crash when DagRun config is not JSON-serializable"
      - "Implemented user-specified retries for \"airflow db check\""
    - title: rustls
      url: https://github.com/rustls/rustls
      highlights:
      - "(PR #1328) Identified Google's incorrect TLS termination procedure and fixed rustls' demo binaries to connect to other properly working TLS server"
    # - title: Flask-AppBuilder
    #   url: https://github.com/dpgaspar/Flask-AppBuilder
    #   highlights:
    #   - "(PR #2071) Refactored logging infrastructure to use proper lazy logging"
    - title: PyAthena
      url: https://github.com/laughingman7743/PyAthena
      highlights:
      - "(PR #446) Fixed improper eager type hints evaluation that breaks compatibility between PyAthena and newer versions of SQLAlchemy"
    - title: Asymmetric two columns (A2C)
      url: https://github.com/xuganyu96/asymmetric-two-columns
      highlights:
      # - Asbtracted resume format and styling into a Jekyll theme built on Bootstrap 5
      - <strong>This resume you are reading</strong> is built using A2C
---