Develop user-facing features
Build reusable code and libraries for future use
Ensure the technical feasibility of UI/UX designs
Optimize application for maximum speed and scalability
Assure that all user input is validated before submitting to back-end
Collaborate with application architect to design user centric UX
Proficient understanding of web markup, including HTML5, CSS3
Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
Good understanding of Swift and/or Objective C
Good understanding of asynchronous request handling, partial page updates, and AJAX
Proficient understanding of cross-browser compatibility issues and ways to work around them.
Proficient understanding of code versioning tools, such as Git
Good understanding of SEO principles and ensuring that application will adhere to them.