About this role

▸about Cantina (Spearbit) — company background

About Cantina:

Cantina Labs is a social AI company, developing a suite of advanced real-time models that push the boundaries of expression, personality, and realism. We bring characters to life, transforming how people tell stories, connect, and create. We build and power ecosystems. Cantina, our flagship social AI platform, is just the beginning.

If you're excited about the potential AI has to shape human creativity and social interactions, join us in building the future!

About the Role:

The Media Team at Cantina is building the real-time infrastructure powering live conversations between people and AI. Our goal is simple but technically challenging: make interacting with AI feel fast, natural, and truly conversational.

We’re looking for a Software Engineer to help improve the speech, audio, and media systems at the heart of the Cantina experience. A major focus of this role is reducing latency and improving responsiveness so AI bots can hear users, process intent, and respond in real time — without awkward pauses or delays.

This team works across everything from low-level media pipelines and WebRTC frameworks to globally distributed infrastructure supporting real-time voice and video interactions across iOS, Android, and web.

If you’re excited by high-performance C++, real-time systems, speech technologies, and building the future of conversational AI, we’d love to talk.