Senior Media Software Engineer - Real-Time AI & WebRTC

Cantina Labs; San Francisco (CA); On-site; USD 180,000 - 270,000; Full time

Benefits offered by this job

Company equity

Health insurance

Paid time off 42 days

Job summary

Cantina Labs is a social AI company creating real-time models that bring characters to life and reshape storytelling and social interaction. We are building Cantina, a flagship platform, and expanding strict, high-performance media pipelines to support live conversations between people and AI characters.

We seek a Software Engineer to enhance speech, audio, and media subsystems, with a focus on low-level processing, model integration, and distributed WebRTC-based infrastructure for

Qualifications

• BS or MS in Computer Science, Computer Engineering, or related field, or equivalent experience.
• 3+ years of experience working as a software engineer.
• Excellent communications skills.
• Demonstrated ability to work independently to drive projects from requirements to completion.
• Experience with C or C++ in a professional context.
• Grounding in memory management, high-performance data structures, and concurrent / multithreaded systems.
• Exposure to system programming concepts, including network protocol design, asynchronous I/O, and distributed system architectures.
• Object-oriented development and design skills.
• Interest in solving subtle and challenging engineering problems.

Responsibilities

• Improve the real-time speech and media systems powering live AI conversations.
• Reduce latency and optimize responsiveness across audio streaming and speech pipelines.
• Build tools to enable the creation of AI models to support speech processing.
• Develop new voice and video capabilities that enable more immersive interactions between users and AI bots.
• Improve and extend our custom WebRTC infrastructure across iOS, Android, and web.

Skills

C/C++

Memory management

High-performance data structures

Multithreaded systems

Object-oriented programming

Independent work

Education

BS or MS in Computer Science/Engineering or equivalent

Tools

WebRTC

Node.js

Go

iOS development

Android development

Job description

Cantina Labs is a social AI company creating real-time models that bring characters to life and reshape storytelling and social interaction. We are building Cantina, a flagship platform, and expanding strict, high-performance media pipelines to support live conversations between people and AI characters.

We seek a Software Engineer to enhance speech, audio, and media subsystems, with a focus on low-level processing, model integration, and distributed WebRTC-based infrastructure for