Node.js Developer (Telephony Service) in GO DNIPROVSKI HVILI

Development of a telephony service with international coverage. Autodialing system, softphone in the browser, multi-trunk routing of calls by regions.
Stack: Node.js (TypeScript), Telnyx Call Control API, Zadarma API, SIP.js/WebRTC, Redis, PostgreSQL.
Tasks:- Integration with VoIP providers (Telnyx, Zadarma)- WebRTC client in the browser (softphone), Caller ID management
Requirements:- 4+ years commercial development on Node.js- TypeScript, WebSocket, Docker, CI/CD
Will be a big plus:- Experience with VoIP API Telnyx, Twilio, etc - understanding of the SIP protocol, SIP trunks, WebRTC- Experience building dialer systems- Experience working with FreeSWITCH or Asterisk- Experience working with multi-regional telephony
Format: remote, project work with the prospect of long-term cooperation.