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Bill Yang, JavaScript Developer in Vaughan, ON, Canada
Bill Yang

JavaScript Developer in Vaughan, ON, Canada

Member since March 18, 2016
Bill is now available for hire
Bill Yang, JavaScript Developer in Vaughan, ON, Canada
Bill Yang

JavaScript Developer in Vaughan, ON, Canada

Member since March 18, 2016
Bill has over 10 years of extensive full-stack web development experience—working with JavaScript, Node, C#, ASP.NET and their various frameworks as well as with the SQL database. He is looking for projects that deal with algorithms and/or have a high impact and visibility. Bill communicates extremely well, has solid coding skills, thinks problems through, and solves them accurately and on time.
Bill is now available for hire



  • JavaScript, 10 years
  • Microsoft SQL Server, 8 years
  • C#, 8 years
  • Agile Software Development, 6 years
  • AngularJS, 2 years
  • Concurrent Programming, 2 years
  • Node.js, 1 year
Vaughan, ON, Canada



Preferred Environment

Atom, JavaScript/Node, GitHub

The most amazing...

...thing I've done was to code a game-playing bot that ranked 57 out of 8000+ competitors.


  • Lead Developer

    2016 - 2016
    • Created a message-processing system that can scale to millions of messages per day.
    • Migrated our message queue technology from Azure MQ to Amazon SQS.
    • Mentored other developers on the team.
    • Worked on a related front-end application based on React and Electron.
    Technologies: JavaScript/Node.js, Microservices, Message Queue
  • Senior Developer

    2013 - 2016
    Alberta Ministry of Education
    • Developed a curriculum development application using Angular, C#/.NET, and SQL Server.
    • Resolved various performance issues—primarily related to search and querying complex data.
    • Participated in the Agile transformation of the team and the department.
    Technologies: JavaScript/Angular, C#/.NET, SQL Server
  • Solution Consultant

    2010 - 2013
    DevFacto Technologies
    • Delivered consistently successful software projects, sometimes under pressure.
    • Provided technical advice to the clientc.
    • Advocated engineering best practices like Agile to client teams.
    Technologies: C#, SQL, Git, JavaScript (jQuery, Backbone, Angular), Azure
  • Software Developer

    2008 - 2010
    Upside Software
    • Developed new features and maintained the existing code base with a million lines of code.
    • Provided technical support to implementation teams.
    Technologies: C#, SQL, JavaScript
  • Programmer

    2007 - 2008
    Idea Market Design Inc.
    • Developed new websites in the Joomla! Framework.
    • Managed the Linux servers at the company and for some of our clients as well.
    • Worked on a data gathering/processing initiative.
    Technologies: PHP/Joomla, Linux, SQL
  • Programmer

    2005 - 2006
    Seneca College
    • Patched an open source network tool for a specific security problem that we faced.
    • Developed a project management website.
    • Managed server farms and wrote the corresponding documentation for them.
    Technologies: PHP, C, Linux, SQL


  • Curriculum Development Application (Development)

    I worked with a cross-functional team to develop an application digitizing curriculum development process. I was involved in all parts of the development process, and my main contributions included:
    - Improving performance of a very complex search functionality.
    - Creating a separate public-facing application to allow staged content publishing and a higher-performance consumer app.
    - Modifying a TinyMCE editor to support math symbols.

    Main technologies used: C#, AngularJS, SQL Server.

  • Shipping Middleware (Development)

    I led a team to develop a centralized back-end system for a shipping company. The system is made up of a collection of microservices written in Node.js and acts as a distribution center linking other applications and databases.

    My primary contributions include:
    - Scaling the system to handle millions of messages per day.
    - Migrating our message queue technology from Azure MQ to Amazon SQS.
    - Tune-logging to find the optimal point for debugging and performance.
    - Diagnosing some product issues under pressure.
    - Mentoring other developers on the team.
    - Managed client inquiries and requirement changes.

    Main technologies used: Node.js, Microservices, Azure Message Queue, AWS SQS.

  • Google AI Challenge | Ants (Other amazing things)

    Developed a game bot to compete in an AI challenge sponsored by Google and ranked 57 out of 8,000+ participants.

    Main technologies used: Python, Numpy, Cython, Algorithms Design.

  • Soccer Field Search (Development)

    A simple tool to search for soccer fields in Toronto using a dataset from the Toronto government's open data website.

    Main technologies used: Node.js, MongoDB.

  • Construction Document Management System (Development)

    Helped build a document management tool for PCL—a large construction firm to share documents between different branches and on-site workers.

    Main technologies used: C#, SharePoint.

  • Upside Contract (Development)

    I worked on a large enterprise contract management system with a wide variety of functionalities resolving around contract creation and management.

    Main technologies used: C#, SQL Server.


  • Languages

    C#, JavaScript
  • Libraries/APIs

    jQuery, Node.js
  • Paradigms

    Agile Software Development, Concurrent Programming
  • Frameworks

    AngularJS, .NET
  • Storage

    Microsoft SQL Server, Elasticsearch, NoSQL, MongoDB


  • Diploma degree in Computer Programming and Analysis
    2003 - 2006
    Seneca College - Toronto, Canada
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