Required Visualization,JSON,Sass,CSS,Web Apps freelancer for Front-End Development specialist job

I am looking for a junior to mid-level front end developer to help with a number of very exciting high-profile project. The project involves data visualization and animations at major sporting events. To begin with we need someone for a 1 month period with a strong likely hood of extension to at least 3 months. We have Ruby and JavaScript expertise in house and are looking for an extra pair of hands to get these projects done.

Key skills

• JavaScript
  
• CSS3 and Sass
  
• HTML5

Other useful skills

• Ruby on Rails
  
• D3.js
  
• Greensocks JavaScript library
  
• jQuery

Skills & Expertise Required

Visualization JSON Sass CSS Web Apps