I am a Software Solutions Developer. My expertise range from
-> Software development in Python/Django and Javascript/VueJS
-> Telecom Application development on FreeSwitch and Asterisk
-> VoIP system/callcentre implementation/improvement.
The technologies I can help you build solutions on are
-> Linux (Ubuntu, Debian)
-> Python/Django, Javascript/JQuery/VueJS, Postgres, Redis, Memcache
-> Freeswitch, Freeradius
I will host your solution in your datacentre (bare metal, VM, LXC or docker) or in the cloud. I recommend Heroku if you need to get up and running quickly.