Cantina

Product Designer

• Design high-fidelity interfaces and end-to-end user journeys for AI character creation and related creation flows across mobile and desktop.
• Collaborate closely with engineering, product, research, and AI teams to explore concepts, validate assumptions, and rapidly prototype new interaction patterns.
• Work at high speed. We move from idea to live prototype in hours, not days. We iterate quickly based on real user behavior and feedback.
• Help shape our design culture, processes, and quality bar as we scale the product and team.
• Own features from concept through polish, ensuring that every interaction, state, and detail is intentional, intuitive, and grounded in user needs.

Senior Product Designer

SDET

• Develop automation from scratch and work on several different projects using distinct test automation frameworks
• Test RESTful web services, client-side web and mobile SDKs, and real-time media services
• Architect new projects in multiple frameworks
• Tackle difficult problems in evaluating audio and video performance under different network conditions and device environments
• Set the direction and establish the path forward for automating testing of components and integrating automation testing into the overall development process

Senior Software Engineer – Test

Full-stack Engineer

• Enhance and extend the real-time Cantina media platform.
• Enable new ways for users to interact with their friends and AI bots through voice and video by implementing new features and capabilities.
• Improve and build on the custom, WebRTC-based frameworks we use to provide media services for iOS, Android, and web clients.
• Collect and analyze metrics relating to system performance and user behavior.
• Participate in detailed and constructive design and code reviews.
• Collaborate with other members of the team to deliver new features and enhancements on a regular basis.
• Work with application development teams to define APIs they can use to integrate with the media stack.

Media Software Engineer, Speech

QA Engineer

• Partner closely with developers and fellow QA engineers to ensure the robustness of the audio and video infrastructure powering real-time interactions in the Cantina app.
• Design, execute, document, and maintain comprehensive manual test cases for complex media features.
• Work closely with developers to create test plans for new features.
• Perform regression and acceptance testing of media components prior to release.
• Analyze test results and provide actionable insights to elevate platform performance.
• Drive refinements in the team’s software development processes and practices.
• Play a critical role in guaranteeing every new feature meets the highest standards of quality and delivers a seamless, compelling experience for users.

Senior Quality Engineer, Media

Machine Learning Engineer

• Own model deployment end-to-end – take video AI models from research to production, build robust inference endpoints, optimize performance, and ensure models scale.
• Build production-grade inference pipelines – design, deploy, and maintain ML services that handle real-time video processing; debug complex issues, optimize latency, and ensure 99.9% uptime.
• Engineer video data workflows – build scalable preprocessing pipelines using serverless GPU infrastructure (RunPod, etc.) to transform raw video and audio into model-ready formats.
• Architect cloud-native ML systems – leverage AWS (S3, DynamoDB, Lambda, ECS) and Kubernetes to build resilient, scalable data and inference infrastructure that can handle terabytes of video data.
• Automate data annotation at scale – build and maintain labeling pipelines using AWS Ground Truth and Mechanical Turk.
• Collaborate across teams – work closely with research and product teams to align model requirements and user needs.

Senior Product Designer

Senior Software Engineer – Test

Media Software Engineer, Speech

Senior Quality Engineer, Media

Machine Learning Engineer, Video