Creation of a Wordpress Plugin which will use Twilio API for SMS marketing.
The screens for administration and front-end will be provided, html will need to be created.
In summary the plugin will achieve two things: an area for the admin settings to be configured and a front-end page for users to manage their sms campaigns.
If you have worked with the Twilio API and have created a WordPress plugin before, you should be able to do this project.
This is a good example of a similar product: http://www.youtube.com/watch?v=1hlWt81GNZ0
Please watch fully before sending quote or open chat for clarification. The main difference will be the clients will have a front-end page to send their messages. This could be done with url's: http://example.com/client1