Java GUI designer / SWT Designer

Looking for Consultant for a short-term contract. Experience in designing User Interface (UI) web. Familiarity or experience with Java GUI frameworks (such as Swing, SWT, and AWT depending on project requirements)- Must have skills. Knowledge of Web Services and REST API. Knowledge of concurrency patterns in Java Strong experience in using the latest approaches including MVC in the browser, event-driven applications using AJAX, JavaScript, JSON. Understanding of NoSQL databases (MongoDB). Good to have skills Experience in OOPS concepts, design frameworks like Springs, Hibernate, XML, JSON, etc. Skill for writing reusable Java libraries, data structure libraries. Knowledge of concurrency patterns in Java.