Willem D'Haeseleer, JavaScript Developer in Belgium
Willem D'Haeseleer

JavaScript Developer in Belgium

Member since December 25, 2013
Willem is a top developer who specializes in writing JavaScript to design powerful back-end APIs and highly interactive UI/UX environments--while always keeping the exact requirements into focus. He is an avid practitioner of BDD and Kanban, and he enjoys technical talks with colleagues.
Willem is now available for hire



  • HTML5, 4 years
  • JavaScript, 4 years
  • CSS, 4 years
  • SQL, 3 years
  • C++, 1 year
  • RequireJS, 1 year





Preferred Environment


The most amazing...

...application I've built was a document management tool that was fully customizable with dynamic widgets through drag and drop.


  • JavaScript developer

    2013 - PRESENT
    • Extended features in the Social Media reporting tool.
    • Optimized various Angular views and Python routes.
    • Was Scrum Master and Jira maintainer.
    Technologies: AngularJS, Restangular, Python, Node.js, MongoDB, EC2, Mercurial, JIRA, Git
  • JavaScript Developer

    2012 - 2013
    Barco NV (dzine division)
    • Assisted maintenance of the Display Studio Suite in C++ MFC and C# interfaces.
    • Developed the automation procedure to remotely update Compact Framework applications on handheld devices.
    • Initiated web development for the web port of a native desktop application using Backbone, RequireJS, and MongoDB.
    Technologies: C++ MFC, C#, Compact Framework, Node.js, MongoDB, RequireJS, Socket.IO, Backbone, Mercurial
  • Developer

    2010 - 2012
    Transport Care NV
    • Responsible for development and optimization of complex T-SQL stored procedures.
    • Developed database monitoring tools to monitor operational data and notify operators through desktop notifications.
    • Introduced ASP.NET MVC to further enhance the garage resource system and allow for more flexible web development.
    • Introduced, implemented, and educated use of the Git source control system as an alternative to Sourcesafe.
    • Developed the inhouse time tracking and invoicing software.
    Technologies: VB.NET, C#, ASP.NET MVC, T-SQL, JavaSript, jQuery


  • Languages

    JavaScript, C#, HTML5, SQL, C++, T-SQL, CSS, Python, PHP
  • Libraries/APIs

    Node.js, RequireJS, jQuery, jQuery UI, Backbone.js, Restangular
  • Tools

    Mercurial, Bitbucket, WebStorm, Jira, Git, GitHub, Jenkins, Node Inspector
  • Frameworks

    AngularJS, .NET, ASP.NET MVC
  • Paradigms

    Scrum, Kanban, Continuous Integration (CI), Behavior-driven Development (BDD)
  • Platforms

    Windows, Ubuntu
  • Storage

    SQL Server Management Studio, Microsoft SQL Server, MongoDB, NoSQL, MySQL

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