I was the Founder and CEO of an MVNO/VoIP hybrid company called Charge (formerly known as Bolt): https://charge.co.
I worked at Twilio: https://www.twilio.com
I wrote the original ruby library that wraps Twilio's HTTP API: https://github.com/twilio/twilio-ruby
Other projects include private CA certificate hosting at https://riza.io and free HPKP report bin hosting at https://hpkp.org (now defunct)
[ my public key: https://keybase.io/andrewmbenton; my proof: https://keybase.io/andrewmbenton/sigs/m4O8mq4uxoPSm2XlB1RUT1XkH5v8KX7UR448y8T74mo ]