Full Stack Software Engineer WebRTC Softphone & IVR Flow Builder (Front End)

You will build the frontend interface for the Twilio-based voice platform used across all locations.

Phase 1 includes softphone UI, dashboards, real-time monitoring, and admin tools.

Phase 2 includes a visual IVR flow builder developed after MVP launch.

Responsibilities

• Build React / Next.js softphone and dashboards for admins, agents, and managers.
• Integrate Twilio Voice JS SDK for real-time WebRTC calling.
• Implement calling features such as dial / answer, mute, hold, transfer, and device selection.
• Develop dashboards : queue state, agent status, voicemails, recordings, location controls.
• Implement real-time updates using WebSockets (and optionally Twilio Sync).
• Create clean UI / UX with TailwindCSS or shadcn / ui and ensure accessibility.
• Ensure cross-browser WebRTC compatibility (Chrome, Safari, Firefox, Edge).
• Implement authentication (JWT / OAuth) and enforce role-based interfaces.
• Collaborate on backend API design and shared TypeScript models.
• Add Sentry logs and automated UI testing for WebRTC and device errors.
• Phase 2 : Build the visual IVR builder using React Flow with versioning, preview, and publishing.

Must-Have Requirements