BluePro AI · 19 hours ago
React Native Developer - WebRTC/VoIP (Contract)
BluePro AI is seeking an experienced contract engineer to integrate a cloud-based phone system using Telnyx into their existing iOS and Android mobile applications. The role requires expertise in WebRTC and telephony APIs, with responsibilities including designing, implementing, and stabilizing the mobile phone system integration.
Computer Software
Responsibilities
Design and implement a mobile phone system integration using Telnyx for iOS and Android applications
Build and maintain WebRTC-based calling functionality, including signaling, call handling, and media streams
Integrate telephony and phone system capabilities via REST and real-time APIs
Implement and maintain mobile features using React Native and Expo
Integrate backend communication using tRPC
Ensure reliability, performance, and security of voice and signaling components
Troubleshoot and resolve issues related to call quality, connectivity, and device compatibility
Collaborate with internal engineering stakeholders to align on architecture and delivery timelines
Produce clear technical documentation related to the integration
Qualification
Required
Proven experience integrating telephony or VoIP systems into mobile applications
Hands-on experience with Telnyx or similar cloud telephony providers
Strong understanding of WebRTC, including signaling, ICE, STUN/TURN, and media handling
Experience integrating phone systems via APIs and SDKs
Strong proficiency in React Native
Experience with Expo in production environments
Working knowledge of tRPC for client-server communication
Experience deploying and supporting applications on iOS and Android
Ability to work independently in a contract-based engagement
Preferred
Prior experience with call state management, background calling, and push notifications for VoIP
Familiarity with mobile audio session management on iOS and Android
Experience optimizing call quality and handling edge cases across devices and networks
Previous contract or consulting experience delivering defined technical outcomes
Company
BluePro AI
Funding
Current Stage
Early StageCompany data provided by crunchbase