I will build real time api webrtc ai voice system websockets stream apps python nodejs

C
cristiaansantos
C
cristiaansantos
CristiaanSantos

About this gig

Are your AI voice agents losing customers because of frustrating 4-second conversational lag spikes or broken interruption handling?


I build and deploy Sub-100ms Low-Latency AI Voice Agents and Audio Streaming Systems powered by peer-to-peer WebRTC data channels and bidirectional WebSockets.


Whether you need custom React frontend, Python/PHP backend plumbing, a 24/7 Twilio receptionist, or a real-time voice chatbot, I got your back for a stable, production-ready voice streams built for action.


My Capabilities:

Sub-100ms WebRTC Media Routing

  • Peer-to-peer streaming that eliminates network round-trip delays, keeping voice response times at a natural human cadence.


Bidirectional WebSocket Connections

  • Persistent, low-overhead pipelines built in Python/Node.js to feed raw token streams straight into synthesis engines.


Smart VAD Interruption Filtering

  • Adv Voice Activity Detection thresholds that instantly clear audio playback buffers and abort active generation loops the millisecond a user breaks in.


Mid-Call Function Calling

  • Automated workflows using n8n/ Zapier/ make com that allow the voice agent to query calendars, pull CRM variables, or push lead tag live.


contact me!!!

Get to know CristiaanSantos

CristiaanSantos

Full stack AI Voice Infrastructure Low Latency Media Engineer

  • FromNigeria
  • Member sinceOct 2026
  • Avg. response time1 hour
  • Languages

    English, Spanish, Portuguese
Hi, I’m Cristian Santos, a full stack ai voice engineer, specialized in ultra-low latency voice infrastructure and self-hosted media engines. Most sellers offer basic cloud API wrappers that suffer from 4-second delays and security leaks. I build and refactor the core backend code that makes automated media processing scale. Using ElevenLabs WebSockets, OpenAI Whisper, FFmpeg, and WebRTC, I build sub-100ms pipelines. Whether you need custom React/Python apps, automated YouTube/Audiobook batch dubbing, or self-hosted AI models (XTTS-v2), I deliver. Let's build your engine.

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