SIP/VoIP Expert — Build SIP Infrastructure + Bridge RTP WebSocket Audio

We are developing a real-time Conversational AI Gateway that acts as a bridge between a telephony provider (Telnyx Media Streams) and an AI Engine (ElevenLabs Conversational AI). · The system requires expert tuning to reach production quality. · Audit the current Python WebSocket ...

We need an experienced engineer to integrate Jambonz with our WebSocket-based voice agent. · Set up Jambonz (paid version) end-to-end · Configure SIP trunks provided by our clients · Enable outbound calling at scale (100+ concurrent calls) · ...

+ We are building a cross-platform desktop Voice Agent using Electron.+ · + + Run locally on Windows and macOS+ · +Start a local WebSocket server (ws://localhost:3001)+ · +Capture microphone audio+ · ...

I've built a live frequency broadcasting system, but I'm currently facing critical audio and signal-processing issues that need an experienced developer to resolve. · ...

We are building an AI Assistant that helps candidates during live interviews. · What Is Already Implemented · Browser audio capture (system audio + mic) · WebSocket streaming (frontend → backend) · Whisper STT integration · AI response generation (LLM) · Resume upload with PDF te ...

We are looking for an expert backend developer to build an application that can capture system audio from a mac and stream it to a websocket. · Mandatory skills: JavaScript, Swift, API, Websockets · ...

We're building an AI voice agent for call centers and are integrating telephony using LiveKit. · ...

We are seeking an experienced Python developer to diagnose and resolve audio quality problems in our real-time voice calling platform. · QualificationsProven experience with Python, especially in asynchronous programming and real-time applications. · Hands-on expertise with TTS/S ...

We are building a production-grade AI Assistant that runs inside the Portal during live Zoom / Microsoft Teams interviews. · This is NOT a demo, NOT an experiment, and NOT an MVP. · The system must listen to system / meeting audio only (Zoom / Teams). · Candidate voice must NEVER ...

We are looking for a FreeSWITCH engineer to implement real-time bidirectional media streaming using WebSockets. The ideal candidate should have experience with FreeSWITCH and WebSocket technology. · * Fixed price or hourly* Estimated total cost* Availability (full-time / part-tim ...

We are looking for a FreeSWITCH expert with ESL experience to build API integration enabling third-party systems to control telephony operations through our platform. · ...

We are seeking a Senior Backend & SIP Engineer to build and stabilize the real-time media layer for our Real-Time Translation (RTT) Voice Solution. · ...

We are building an AI Interview Assistant that listens to the interviewer's audio only (Zoom/Teams/system audio), transcribes it in real time, and displays AI-generated answers on screen for the candidate.We are looking for a senior engineer to finalize and harden the system. · T ...

We're building a mobile-first Progressive Web App that requires real-time audio communication capabilities. · This is a greenfield project with strong product-market fit validation in a rapidly growing space. · ...

We are developing a Wi-Fi based push-to-talk (PTT) intercom system using ESP32 devices. · ...

+I've built a live frequency broadcasting system but I'm currently facing critical audio and signal-processing issues that need an experienced developer to resolve. · +Noise issue. Live audio plays but output contains heavy noise instead of clean signal. · Live stream – no peak d ...

C#/.NET application processes SIP-based phone calls receives RTP audio streams it to an ASR backend over WebSockets fixes WebSocket Multi-Session Bug IIS Deployment. · ...

We are building a production-grade AI voice bot platform and need an experienced Telephony / VoIP / SIP Engineer to design and implement the server layer that connects our AI system with external call centers and VoIP providers. · ...

We need a proof-of-concept for a real-time voice conversation application where users can have a live phone-like conversation with an AI agent. · Build a web application that enables real-time voice conversations with an AI persona. · The user speaks into their microphone, the AI ...

We are seeking an experienced LiveKit developer to build a custom Speech-to-Text (STT/ASR) plugin that integrates Alibaba's Qwen3-ASR Flash Real-Time model into our LiveKit deployment. · ...