Full Stack Software Engineer WebRTC Softphone & IVR Flow Builder

Bucharest - Romania

Monthly Salary: Not Disclosed

Posted on: 19 hours ago

Vacancies: 1 Vacancy

Job Summary

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/ 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

3 years experience with React and TypeScript; strongly preferred.
Hands-on experience integrating Twilio Voice JS SDK or similar WebRTC technologies.
Strong understanding of WebRTC audio handling device switching and echo/noise issues.
Experience with real-time applications (WebSockets live dashboards multi-user states).
Strong UI/UX implementation skills with TailwindCSS shadcn/ui or Material UI.
Experience consuming REST and WebSocket APIs.
Knowledge of JWT/OAuth authentication flows.
Experience with performance optimization and debugging media issues.
Strong collaboration skills especially around cross-functional API development.

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/ softphone and das...