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sgtcoolguy/README.md

Christopher Williams

🏠 Rochester, New York, United States 📫 [email protected] ☎️ 585-797-4457 📄 https://linkedin.com/in/christopher-williams-513a7a2

Experience

Amazon

Software Development Engineer II

May 2021 - Present
  • Proactive Self-Service Campaigns on Alexa devices
    • Expanded Self-Service Campaigns for Alexa from Device Notifications to include Home Cards as a new channel
      • Reaching millions of customers with proactive Book recommendations on evergreen campaigns
    • Improved performance and stability of scheduled delivery notifications to significantly increase throughput during fan-out (500 tps to 5000 tps)
    • Implemented initial profanity/content sensitivity guardrails for campaign contents
  • Lead technical Point of Contact for Books customer experiences within Alexa Shopping
    • Fixed end-to-end tests that were failing within our services and across shared partner services that required manual validation on at least weekly basis, eating up ops/on-call time
    • Expanded support for Audible audiobooks within Alexa Shopping to Brazil marketplace
    • Coordinated changes across partner services and teams to dial up audiobook experiments
  • Improved developer/operations experience internally within team
    • Drove CI pipeline improvements to reduce manual interventions/approvals
    • Integrated notifications across Chime/Slack for code reviews, pipeline status, on-call tickets
    • Integrated code reviews with issue tracking to link together issues for tracking purposes and automated workflows
    • Reduced weekly on-call load from two SDEs to one

Axway

Principal Software Architect II

Jan 2016 - May 2021
  • Significant performance improvements in Eclipse-based IDE for API Gateway
    • OSGI-specific classloader fixes and improved algorithms for topological sorting and cycle detection of policy graph(s) leading to reduction of load times for complex customer projects from minutes/hours down to seconds
  • Architectural changes/improvments for handoff of Titanium to open source community
  • Lead Engineer for iOS, Android, and Windows SDK platforms for Appcelerator Titanium - both in JavaScript and each platform's native language (Obj-C, Java and C++, respectively).
    • Wrote custom test framework and suite for automated testing of Titanium SDK APIs and native modules across iPad/iPhone simulators and devices; macOS Catalyst apps; Android emulators and devices; Windows Phone emulator and Universal Windows apps.
    • Automated build/release of SDK, native modules, and dozens of npm packages
    • Automated and updated doc generation and conversion process from Confluence to legacy JSDuck website and new Vue/Markdown replacement
    • Generated custom tooling to lint API docs to help enforce API consistency; additional scripts to generate automated API tests from API docs; rewrote legacy build process from Python scripts to Node.js based JavaScript.
    • Instituted and maintained a ~25 node Jenkins-based CI/CD infrastructure, maintaining child nodes with custom chef cookbooks. Evolved CI nodes to use newer/varying versions of Xcode/Visual Studio/Android SDK/NDK. Automated setup/configuration of build nodes from scratch OS versus special manually maintained single build box.
    • Drove usage and enforcement of code quality, formatting, linting and developmental tools using clang-format, danger.js, eslint, husky, lint-staged, commitizen, etc.

Appcelerator

Engineering Tech Lead

Sep 2012 - Jan 2016 (3 years 5 months)
  • Tech lead for the Studio IDEs: Appcelerator, Titanium, and Aptana.
  • Initial implementation of Hyperloop for Android - exposing native (Java) Android & 3rd party APIs to Titanium SDK's JS environment.
  • Lead engineer responsible for adding Windows Phone and Desktop SDK support to Appcelerator Titanium's supported platforms.
  • Worked cross-product on Studio, Android SDK, iOS SDK, and Windows SDKs.

Senior Software Engineer

Jan 2011 - Aug 2012 (1 year 8 months)

Senior developer on Appcelerator, Titanium, and Aptana Studio products - IDEs built on top of Eclipse with varying branding and toolsets offered (for languages such as JS, Ruby, PHP, Python).

Aptana

Senior Software Engineer

May 2007 - Jan 2011 (3 years 9 months)
  • Solo developer on Aptana RadRails - a Rails-focused IDE built on top of Eclipse and Aptana Studio, which added Ruby language support and tooling.
  • Rewrite of Aptana Studio for v3 adding custom git support
  • Initial POC of backend service for on-demand cloud hosting

Education

Rochester Institute of Technology

Bachelor of Science (B.S.), Computer Science

Skills

Java / TypeScript / JavaScript / Ruby / Obj-C / Groovy / C++ / Object Oriented Design / Git / Eclipse / OSGI / REST / Agile Methodologies / Scrum / Software Development / Amazon Web Services / Large Langauge Models (LLMs) / Alexa

Popular repositories Loading

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  2. boxee.ruble boxee.ruble Public

    Aptana Studio 3 Ruble for boxee app development

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  3. danger-plugin-dependencies danger-plugin-dependencies Public

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    Provides dependency information on dependency changes in a PR *

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  4. v8_titanium v8_titanium Public

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  5. swagger-js swagger-js Public

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  6. titanium-google-analytics titanium-google-analytics Public

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    Google analytics for Appcelerator Titanium

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