Hello, we offer an iterative approach to protect the investments and guarantee our results. Also we expose all the development process to our customers. Our developers are high skilled in complex JavaScript, including OOP and prototypes, AJAX, integration, DOM, HTML5, Node.js. We really love to design the convenient applications: UX planning and responsive UI is what we always offer in priority. The work of our senior dev is $59/hr, for a junior it is $23/hr. There are some discount systems for our clients. We are not Australian, but we have a very similar time zone (GMT +8). If you are interested in cooperation with our dev team, we can discuss the details, and you'll be provided with a more specific and vivid proposal.
Sincerely, Pavel and my ExtPoint team.