WebRTC Jobs

Your bid MUST include answers to the 5 questions at the bottom of this posting or it will be immediately rejected. We're a UK-based eSIM and mobile network company launching a branded international calling service. We need an experienced developer to fork, rebrand, and customise the WebTrit Phone open-source softphone app and get it published to both app stores. IMPORTANT: Read this entire posting carefully. There are specific questions at the bottom you MUST answer. Generic proposals will be rejected immediately. What is WebTrit? WebTrit Phone is a Flutter/Dart softphone app that uses WebRTC for voice and video calling. It connects to SIP-based VoIP systems via a REST API. The full source code is available on GitHub. What We Need Done Phase 1 — Fork & Rebrand Fork the Web...

I already have two live avatars that mirror real people as they speak to one another, yet the current pipeline adds several seconds of lag. I need your help driving total end-to-end latency (mouth movement, facial animation, and generated voice) down to a hard ceiling of one second while keeping everything completely self-hosted—no paid APIs or usage-based services. The finished solution must plug straight into my existing platform and remain free for the public to use. You will begin by profiling the present stack, spotting where frames or audio buffers pile up, then redesign the generation and streaming loop so that speech-to-text, text-to-speech, facial blend-shape synthesis, and video compositing all run in near real time. GPU acceleration, WebRTC, low-level ffmpeg calls, on-dev...

Looking for Expert Team to Build FULL CUSTOM Mobile App (NO Agora / NO 3rd-Party SDK) Hello Freelancers, We are looking for a highly experienced mobile app development team or individual to build a large-scale FULL CUSTOM real-time communication platform. Important: This project must be developed using FULL CUSTOM technology. No Agora No Twilio No third-party calling or messaging SDK No ready-made WebRTC SaaS platforms All signaling, media handling, backend logic, scaling, and security must be implemented from scratch. Only expert-level developers should apply. Core Features (Full Custom System) Video & Voice Communication Video Call (1-to-1 and Group) Voice Call (1-to-1 and Group) Screen sharing during calls Meeting system with host and participant controls (similar to Zoom)...

I need a production-ready Twitch-style mobile application built with Flutter and delivered inside one month. The single codebase must compile cleanly for both iOS and Android and feel as responsive as the original platform. Here’s what has to be in place: • Live streaming with low-latency playback for broadcasters and viewers • Real-time chat per stream • Full user profile management (create, edit, follow/subscribe) • An admin panel for content and user moderation • Payment-gateway support for in-app purchases or subscriptions • One-tap sign-up and log-in through major social networks You’re free to choose the underlying streaming stack—WebRTC, RTMP, Agora,Livekit, AWS IVS, or anything comparable—so long as it scales and...

Important: Start your postulation with the word: UNDERSTOOD. Only those offers will be considered. Project Description: We are seeking a WebRTC specialist with experience in React to fix specific issues within a video call service that is currently in production. The main objective is to correct and optimize inconsistent behaviors related to video and audio streaming, screen sharing, and connection stability between users. We need help fixing the following issues: 1. Screen sharing errors * When screen sharing starts, it initially works correctly. * When screen sharing is stopped and then restarted, visual and synchronization issues occur. * A residual frame (mini preview) appears in the interface that should not be displayed. * When screen sharing is stopped, the visual React compone...

Flutter Developer (iOS & Android) – Strong UI, BLE & Realtime Hi, We’re looking for an experienced Flutter developer to help us build a high-quality mobile app (iOS & Android) for a connected hardware product. This is not a generic app. The project involves real-time interaction with a physical device, a strong focus on UI quality, and support for remote control with video and audio. What you’ll be working on A Flutter app for iOS and Android Implementing pixel-accurate UI from our mockups (Figma) Bluetooth Low Energy (BLE) communication with a custom device Real-time control features Remote interaction using video and audio (WebRTC or similar) Polishing animations, transitions, and overall UX UI matters a lot here We already have mockups and a cle...

I want to roll out a social-style health platform where doctors and patients interact as easily as they would on Instagram, yet with the depth and privacy expected from a medical service. The heart of the product is a doctor-to-patient feed: doctors publish short text posts, reference images, or quick explainer videos, and patients can react or comment in real time. A built-in messenger extends the conversation to private chat, voice, and full video calls so remote consultations feel natural rather than bolted on. Beyond conversation, the system must handle practical care tasks. Patients need a friction-free way to request and confirm appointments, with calendar reminders firing automatically. When a session is booked, both parties should see it reflected instantly—think two-way syn...