UI Developer

UI Developer 

Location: Collegeville, PA


Must Haves:
7+ yrs IT experience
5+ yrs Object Oriented JavaScript
3 years of experience designing event based user interfaces using extJS .
High competency in CSS v3
Solid knowledge of the MVC design pattern
Experience using AJAX / JSON processing against RESTful web services in JavaScript
Experience building custom controls/widgets, extending built-in components, custom themeing
Proficiency developing cross-browser, event-driven, secure web applications using: JavaScript, AJAX, REST, JSON, JSP, XML, CSS, DOM

Preferred Items:

Java server-side development, preferably with the Spring Framework
Familiarity with cross-browser issues with older browsers - particularly IE7
Experience in analyzing and debugging performance issues
Experience working in an Agile / SCRUM development methodology

We are looking for a UI Developer to join a team developing a large scale, single-page web application written using the
 Ext JS 4 framework. 
The application is meant to serve as a model for future application architectures for the organization. 
This UI Developer will be working with a team comprised of on-shore and off-shore UI engineers with varying levels of 
experience in the extJS framework. 
This person needs to be experienced in extJS and JavaScript development who has operated in a UI Developer capacity on 
large scale projects.