Voice & Real-Time Media Platform Engineer📣 Job Ad

About the Role

TestCrew, a leader in Quality Engineering, Digital Assurance, and Digital Engineering, is seeking a Voice & Real-Time Media Platform Engineer to join their team in Medina, Saudi Arabia. With a global team of over 700 experts, TestCrew supports enterprises in building and scaling technology across critical sectors. This role focuses on the design, development, and optimization of real-time voice, audio, meeting automation, and AI-agent infrastructure, with an emphasis on low-latency media systems, telephony integrations, browser-based communications, and real-time AI interactions. This is a full-time position requiring 5-10 years of experience.

Key Responsibilities

• Design, develop, and optimize real-time voice, audio, and media systems, prioritizing low latency and high reliability.
• Build and maintain infrastructure for AI-powered voice agents and real-time communications.
• Work with WebRTC internals, including peer connections, media tracks, signaling, and browser media pipelines.
• Develop meeting automation solutions for platforms such as Google Meet, Microsoft Teams, and Zoom.
• Troubleshoot and resolve complex media-related issues across browsers, backend services, telephony systems, and real-time communication platforms.
• Integrate and manage telephony gateways and media servers, including SIP and RTP communications.
• Design and optimize low-latency Speech-to-Text (STT) and Text-to-Speech (TTS) pipelines, including fallback mechanisms, barge-in functionality, and lip-sync synchronization.
• Develop and extend capabilities using the LiveKit Agents SDK and real-time agent infrastructure.
• Enhance monitoring, observability, tracing, and diagnostics across voice and media processing pipelines.
• Lead incident response for audio quality, latency, connectivity, media synchronization, and session reliability issues.
• Collaborate with product, AI, infrastructure, and backend teams to deliver scalable and resilient real-time communication solutions.

Required Qualifications

• Proven experience designing and operating low-latency, real-time communication systems in production environments.
• Deep understanding of WebRTC architecture, browser media handling, peer connections, and real-time media transmission.
• Strong experience with SIP, RTP, telephony integrations, media gateways, or voice communication platforms.
• Solid knowledge of audio processing concepts, including codecs, packet loss, jitter buffering, synchronization, and media quality optimization.
• Hands-on experience supporting production voice, audio, video, or real-time communication (RTC) platforms.
• Strong software development skills in Go, Java, C/C++, or Python.
• Experience troubleshooting distributed systems and leading incident response for critical production services.
• Strong understanding of networking protocols and performance optimization techniques for real-time media delivery.

Technical Skills

• Expertise in WebRTC, SIP, and RTP protocols.
• Experience with telephony gateways and voice communication platforms, including FreeSWITCH, baresip, SIP bridges, and media gateways.
• Proficiency in audio processing concepts and optimization techniques.
• Experience with distributed systems and their troubleshooting.
• Strong programming skills in Go, Java, C/C++, and Python.
• Familiarity with Speech-to-Text (STT) and Text-to-Speech (TTS) technologies, including barge-in handling and lip-sync processing.
• Experience with LiveKit and the LiveKit Agents SDK.
• Proficiency in monitoring, observability, tracing, and diagnostics tools.
• Experience in incident response for critical production services.
• Knowledge of Chrome DevTools Protocol, headless Chrome, browser automation, and browser pool management.
• Familiarity with Kubernetes for performance tuning of real-time workloads.
• Understanding of OpenTelemetry and distributed tracing.
• Knowledge of identity management and authorization frameworks such as OpenFGA, Keycloak, and OIDC.

Work Context

This is a full-time position based in Medina, Al Madinah, Saudi Arabia. The role requires 5-10 years of relevant experience. TestCrew serves critical sectors including banking, government, telecom, aviation, retail, and SportsTech.