AI Engineer, Voice and Realtime

Obble develops a live-call interview system that combines audio processing, transcription, language models, and speech generation. The AI Engineer, Voice and Realtime will own the realtime interview pipeline, engineer and evaluate prompts, manage model and speech-provider integrations, and improve system performance under latency constraints.

Responsibilities:

• Own the realtime interview worker: audio handling, speech-to-text, model calls, and turn-taking under a latency budget
• Design prompts as engineering artifacts, versioned and measured against a frozen corpus rather than adjusted by vibes
• Run the evaluation loop: build the scenarios, read the transcripts, and defend a change with numbers before it goes live
• Keep the vendor layer swappable. Models and speech providers change; the product should not have to