Twilio API Developer Expert

I am looking for an experienced web developer who has worked with Twilio and is familiar with the following services.

Calldrip.com
Callrail.com
calltrackingmetrics.com

I am looking for someone that understands these systems and will be able to develop something similar with much more added functionality. More details will follow to suitable candidates. Please reply with the word orange if you understand and have read this listing. Also please provide samples of other web applications you have developed.

Will be supervised by an expert web architect.