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ONLY BUILD IF YOU HAVE STRONG EXPERIENCE IN THESE AREAS SIP, NAT Traversal, Asterisk/FS, React and strong backend servers scaling. I’m building a browser-based VoIP platform dedicated to business communication and I need an experienced React developer to take it from architecture to live deployment. The entire feature list—covering everything from secure voice and video calling to messaging and call-related utilities—is spelled out in the requirements document I’ve attached, so you’ll have clear, granular guidance from day one. SIP, NAT Traversal, Asterisk/FS Tech expectations You’ll craft a responsive single-page app in React (TypeScript preferred) that connects to a SIP/WebRTC back-end. I’m open to your preferred server stack (Node/Express, Go, or similar) as long as it cleanly exposes the REST and WebSocket endpoints already mapped in the spec. Attention to component re-use, state management (Redux, Zustand or comparable), and strong unit testing is essential. Key objectives • Implement the UX exactly as in the wireframes, including dark-mode support. • Ensure crystal-clear audio and video quality with graceful fallbacks for low bandwidth. • Incorporate the full feature set outlined in the document—this includes items like call recording and instant messaging, along with several advanced options detailed there. • Secure every data stream with TLS and JWT-based auth. • Deliver clean build scripts and CI hooks so I can spin up staging or production with a single command. Hand-off criteria I’ll consider the project complete when the app is deployed on my cloud account, passes the acceptance tests listed in the spec, and includes concise setup and contributor documentation. If you’ve shipped WebRTC or SIP-driven apps before, especially in a B2B context, I’d love to see your work and discuss how you’d approach this build.
Project ID: 40297620
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25 freelancers are bidding on average ₹377,120 INR for this job

Hello Sir, Your project requirements align well with my experience building real-time communication platforms and scalable backend systems. I have 12+ years of full-stack development experience, working with Node.js, WebRTC integrations, scalable backend APIs, and complex real-time systems. I have also worked with React (TypeScript), WebSocket architectures, and high-performance server deployments, which are essential for building a browser-based VoIP platform. For your platform, I can build a React single-page application with reusable components, proper state management (Redux/Zustand), and a clean architecture that integrates with your SIP/WebRTC backend (Asterisk or FreeSWITCH). I’m experienced in implementing secure communication layers using TLS, JWT authentication, and WebSocket signaling, ensuring reliable voice/video calling, messaging, and advanced call features like recording. Key focus areas during development will include: • High-quality audio/video streaming with WebRTC and fallback handling for low bandwidth • SIP integration with NAT traversal for stable connections • Clean REST + WebSocket backend architecture • Secure communication using TLS and JWT I can also handle deployment on your cloud infrastructure, ensuring staging and production environments can be launched easily with documented setup steps. Looking forward to reviewing the full specification and discussing the architecture for your VoIP platform. Best regards, Jitendra Sharma
₹350,000 INR in 60 days
5.1
5.1

With a rich background in both frontend and backend development, including React.js and Node.js which are key to your project, I'd be the perfect fit to build your VoIP platform. Having created complex, scalable and intuitive web and mobile applications for a wide range of clients over the past 5+ years, I've honed my ability to transform ideas into practical solutions through efficient code. My job isn't just about meeting requirements. It's about ensuring every aspect - whether it's audio quality or call recording - is executed to perfection. Moreover, my expertise in API integration and database management will ensure smooth integration between your chosen technologies like SIP, NAT Traversal, Asterisk/FS with React taking advantage of REST and WebSocket endpoints necessary for your API build. I understand not only the importance of incorporating every detail as specified but also ensuring the application's solid performance across different scenarios; from bandwidth fallbacks to secure data streams via TLS and JWT-based auth. My passion for what I do is reflected in my clean, optimized and maintainable code. You can rely on me to deliver on time, keep you updated on progress, run seamless tests on staging or production environments using CI hooks and provide comprehensive, easily-followed setup documentation ensuring you have full control of your platform post handover. Let's discuss further how we can make your VoIP vision a reality, together!
₹375,000 INR in 7 days
5.0
5.0

My ability to lead and collaborate as a full-stack developer makes me the ideal fit for your React VoIP platform. I have a deep understanding of the SIP, NAT Traversal, Asterisk/FS technologies you require to ensure high-quality call experience with fallback for low bandwidth. Moreover, my TypeScript-based stack expertise perfectly aligns with your prerequisites for a responsive single-page app. My focus on component re-use and state management is rooted in a decade's worth of experience building scalable platforms utilizing various frameworks including Node/Express and Go. Ensuring secure data streams and robust authentication via TLS and JWT mechanism comes as second nature to me at this point. Additionally, I take pride in delivering thoroughly documented build scripts and CI hooks, ready to deploy at the click of a button. Past clients appreciate my commitment to their long-term success while maintaining clear communication throughout projects. Building robust, innovative systems that evolve alongside businesses is what sets me apart from the competition. I look forward to discussing your unique requirements and leveraging my skils to make your VoIP business platform a industry standout.
₹400,000 INR in 7 days
3.5
3.5

Dear , Your VoIP platform aligns perfectly with our expertise in React, WebRTC, SIP integrations, and scalable backend systems. At CUBEMOONS PVT LTD, we have experience building real-time communication platforms designed for reliability, performance, and business use. We can develop a responsive React (TypeScript) SPA that integrates seamlessly with your SIP/WebRTC backend (Asterisk/FreeSWITCH) while ensuring smooth NAT traversal and stable real-time communication. Our approach: • Build a clean, modular React architecture with reusable components and state management (Redux/Zustand). • Integrate secure voice/video calling, messaging, and call utilities as defined in your requirements. • Ensure high-quality audio/video streaming with adaptive bandwidth handling and low-latency performance. • Implement TLS encryption and JWT authentication to secure all data streams. • Develop a scalable backend using Node/Express or Go with REST and WebSocket APIs. • Provide CI-ready build scripts, testing, and deployment setup so staging and production can be launched easily. We focus on delivering production-ready systems with clean code, strong documentation, and reliable deployment. I’d be glad to review your specification and discuss the architecture to move this project forward efficiently. Best regards, Amaan Khan P. CUBEMOONS PVT LTD.
₹375,000 INR in 7 days
2.6
2.6

Your project needs a solid React front end tightly connected to a SIP/WebRTC back end with a focus on high-quality voice/video and robust state management. I’ve worked on a B2B VoIP platform where we tackled similar challenges—ensuring clear audio under varying network conditions and building a secure, scalable signaling server exposing REST and WebSocket APIs. For NAT traversal and Asterisk integration, I’d build on best practices to handle edge cases like symmetric NAT and bandwidth fluctuations, using adaptive codecs and fallback streams to maintain call quality. On the React side, I’d use Redux for clear state flow, component re-use aligned with your wireframes (including dark mode), and set up thorough unit tests. For authentication and data security, JWT over TLS is straightforward to implement and audit. One question: Do you have preferences on call recording storage—cloud object storage or your own servers? Also, do you want the build and CI scripts containerized for easier deployment? I’m ready to begin planning a clear architecture walkthrough and jump into development immediately.
₹375,000 INR in 7 days
2.9
2.9

Kolkata, India
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Member since Aug 10, 2022
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