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KelCodesStuff/README.md

Hello, I'm Kel 👋🏼

Software Architect with 12 years of experience in test automation framework architecture for complex distributed systems. Expert in engineering scalable testing solutions that ensure data integrity in high-throughput pipelines.

Adept at leading Shift Left strategies and TDD methodologies, to drive comprehensive test coverage. Proven track record of accelerating release velocity and reducing critical post release bugs by over 40%

Active contributor to open-source projects, delivering enhancements to Unit/UI testing and core logic fixes.

Skills

Programming Languages Testing Frameworks Data & ML Tools Cloud Services Observability
Python
Java
TypeScript
Swift
Kotlin
Pytest
JUnit
Playwright
Cypress
XCTest
XCUITest
Databricks
Snowflake
Spark
Pandas
NumPy
Xcode Instruments
Android Profiler
Docker
Kubernetes
Firebase Test Lab
Google Cloud Build
Google Cloud Deploy
Jenkins
GitHub Actions
Sentry
Datadog

Experience

Cybersecurity

  • Architected a Python framework to validate the AI/ML detection engine, utilizing drift detection to identify data degradation and adversarial inputs, resulting in a 33% increase in threat detection accuracy.
  • Engineered a Python data validation framework to ensure the reliability of continuous data ingestion from distributed endpoints, automating data freshness checks and increasing trusted data availability by 20%.
  • Established a formalized engineering strategy in a fast-paced startup environment, aligning Product, Engineering, and stakeholders on critical reliability metrics to guide automation priorities.
  • Slashed production error resolution time by 15% using Datadog and Sentry to streamline root cause analysis and identify critical gaps in test coverage.
  • Achieved a 27% improvement in API reliability by conducting performance and load testing with Locust for critical REST and GraphQL endpoints, effectively identifying and resolving bottlenecks.

Mobile

  • Engineered automated profiling workflows using Xcode Instruments and the Metal System Trace template to diagnose GPU rendering bottlenecks, reducing average frame intervals by 14%.
  • Validated hardware accelerated rendering pipelines by analyzing Metal Performance HUD metrics like FPS and GPU time, ensuring stable performance across multiple iOS devices and OS versions.
  • Mitigated mobile application ANRs and crashes by 15% by analyzing and profiling usage scenarios with Xcode Instruments and Android Profiler to identify and fix key performance bottlenecks.
  • Drove a 53% increase in regressions detected by designing, and leading the feature team adoption of UI test automation using XCUITest and Espresso.
  • Decreased critical post-release bugs by 41% by managing the iOS and Android grey/black box testing effort and prioritizing test cases based on user feedback and telemetry data.

Web

  • Architected and stabilized the test automation infrastructure using Playwright and CircleCI, restructuring legacy processes to increase release velocity by 35% and drive Coveralls coverage to 73%.
  • Led agile teams in boosting the number of regressions detected by 54% through developing and implementing a test automation framework using Playwright.
  • Pioneered a shift-left testing strategy by integrating automated gates into CI/CD pipelines, blocking regressions and reducing post-release issues by 37%.

Open Source Contributions

Wikipedia for iOS:

  • Authored new unit and UI tests to validate functionality in core modules.
  • Contributed bug fixes to address reported issues, improving the overall reliability of the application.

Firefox for iOS:

  • Developed unit and UI tests for key application features to improve code quality and prevent regressions.
  • Implemented bug fixes related to search to enhance application stability and user experience.

CI-CD

Pinned Loading

  1. Metal-Performance-Tester Metal-Performance-Tester Public

    A tool for testing GPU performance regressions in Metal applications.

    Swift

  2. Neon-Casino Neon-Casino Public

    iOS and iPadOS slot machine game. Includes Test Plans for UI, Unit, and Performance tests.

    Swift 6

  3. Authenticator Authenticator Public

    Authenticator iOS app. Includes Test Plans for UI, Unit, and Performance tests.

    Swift

  4. Kalshi-Trading-Bot Kalshi-Trading-Bot Public

    Python

  5. wikipedia-ios wikipedia-ios Public

    Forked from wikimedia/wikipedia-ios

    📱The official Wikipedia iOS app.

    Swift

  6. swift swift Public

    Forked from swiftlang/swift

    The Swift Programming Language

    C++