qualifications Good understanding of front-end technologies, including HTML5, CSS3, JavaScript, jQuery Experience building user interfaces for websites and/or web applications Experience designing and developing responsive design websites Comfortable working with debugging tools like Firebug, Chrome inspector, etc. Ability to understand CSS changes and their ramifications to ensure consistent style across platforms and browsers Ability to convert comprehensive layout and wireframes into working HTML pages Knowledge of how to interact with RESTful APIs and formats (JSON, XML) Proficient understanding of code versioning tools {{such as Git, SVN, and Mercurial}}