April Leone, JavaScript Developer in Seattle, WA, United States
April Leone

JavaScript Developer in Seattle, WA, United States

Member since December 24, 2015
April is a senior front-end web developer with over 15 years of experience at companies like Starbucks, Rosetta Stone, and Livemocha. She specializes in building front-ends for JavaScript web applications and has deep expertise in the nuances of cross-platform development.
April is now available for hire


  • Rosetta Stone
    CSS, HTML, AngularJS, JavaScript, React, Scrum Master, Remote Team Leadership
  • Livemocha
    WordPress, SproutCore, CSS, HTML, JavaScript
  • Starbucks
    Sitecore, HTML, Visual Studio



Seattle, WA, United States



Preferred Environment

React, Implementation, UI, Team Mentoring, Scrum Master

The most amazing...

...app I've built was a themed web app that could display the user's language left to right or vice versa. This enabled one site to launch worldwide.


  • Senior Front-end Engineer

    2013 - PRESENT
    Rosetta Stone
    • Built a language-learning app for Arabic learners in AngularJS.
    • Constructed a reporting tool so administrators could see their students' progress in real-time.
    • Developed custom AngularJS services and corresponding tests.
    • Created custom exact-target email templates and data extensions and a tool to allow administrators to email users at the click of a button.
    Technologies: CSS, HTML, AngularJS, JavaScript, React, Scrum Master, Remote Team Leadership
  • Senior Front-End Engineer

    2011 - 2013
    • Helped build the website Livemocha's language-learning platform from scratch using SproutCoreJS (EmberJS 1.0) and a designer mockup.
    • Built a custom content-editing tool so that a content creator can create their own language lessons for use in the Livemocha application.
    • Created custom CSS animations for a language learning app.
    • Integrated an application with a NoSQL database using JSON endpoints and also added a custom font icons for use throughout the application.
    • Supported the marketing team with WordPress website issues.
    Technologies: WordPress, SproutCore, CSS, HTML, JavaScript
  • Senior Front-End Developer

    2011 - 2011
    • Built custom pages for the Starbucks' website and pages for iOS devices for their store music downloads.
    • Integrated Starbucks' pages with a Sitecore content service.
    • Constructed the April 2011 day of service portion of the website. This allowed volunteers to sign up to help with various community-service projects worldwide.
    • Made periodic updates to the corporate website using an Agile Scrum team.
    Technologies: Sitecore, HTML, Visual Studio


  • Livemocha.com

    This is a custom language-learning site. It was originally built in SproutCore in 2012, but rebuilt in AngularJS in 2015.

    The site uses Grunt/Node for the server, Bower for package management, and custom font icons.

    Livemocha has a history of a 11 million users worldwide.


  • Languages

    CSS, HTML, Sass, PHP, JavaScript
  • Frameworks

    Unity3D, Unity, SproutCore, AngularJS, Jasmine
  • Tools

    Bower, Git, Karma, Grunt, Sublime Text 2, Visual Studio
  • Paradigms

    Agile Software Development
  • Platforms

    iOS, WordPress, WordPress Theme Design, MacOS
  • Storage

    NoSQL, MySQL
  • Other

    PSD to HTML, PSD Slicing, Freelance, Programming, ADK, IT, Virtual Reality (VR), Front-end Development, Software Development, Embedded Software, User Experience (UX), Sitecore, Localization, Scrum Master, Remote Team Leadership, Implementation, UI, Team Mentoring
  • Libraries/APIs

    React, Lodash, Underscore.js, jQuery

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