Functionality + Design
User interface connects users and the system. Good user interface makes the functions more effective, make user experiences richer.
We work with developers
If you are hard-core programmer to develop functional applications, one more thing you need is good GUI. We have knowledge and experience of application development, we know UI of web application is different from normal website.
Designer must understand the functions to make the UI effective, we do it.
Send us your wireframe, list of functions to quote.
Skills for UI/UX development
Design, XHTML/CSS, Javascript and libraries such as jQuery.js, prototype.js, Flash, Flex, ActionScript etc