CGI Animator Wanted

I need a creative and flexible CGI animator to design and construct graphic representations of technical processes in the telecomms industry to be incorporated into a series of online videos. This is an ongoing job.

Each animation needs to be 60-90 seconds long and the workflow will involve initial brief, discussion and approval of your proposed ideas, execution and delivery of the animation, and no more than 2 rounds of changes / amendments.
The animations must adhere to certain frame size, frame rate and codec spec.

Please provide examples of previous work with your bid