contenteditable + custom elements (Polymer) + crossbrowser

You must know: contenteditable, in particular the little range/caret navigation differences between the different browsers. Polymer knowledge is an advantage but not a must. The idea behind the app/component is to develop a text editor based on and extendable via custom elements. Your job will be to polish caret navigation issues. This is about an open source project, so you might be interested to join as a collaborator/maintainer. The offer is intended for single developers unless you are a company willing to collaborate on and benefit from the project via contribution of finances and/or development time.