Proficient understanding of web markup, including HTML5, CSS3Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASSFamiliar with client-side scripting and JavaScript frameworks, including jQueryBasic understanding of JavaScript libraries and frameworks, such as AngularJS, and i'm still learning in the process and perfecting my skills with libraries like AngularJS 2, ReactJS, VueJS, MeteorJS, EmberJS.Good understanding of asynchronous request handling, partial page updates, and AJAXBasic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image. Familiarity with tools such as as Gimp or Photoshop is a plus.Proficient understanding of cross-browser compatibility issues and ways to work around them.Proficient understanding of code versioning tools, such as Git, SVN, Bitbucket, Heroku, and a Cloud9 an online cloud-based integrated development environment (IDE) Good understanding of SEO principles and ensuring that application will adhere to them.