Media Software Engineer, Speech (All Levels)

Cantina Labs is a social AI company developing advanced real-time models for enhanced storytelling and interaction. The role involves extending and improving the audio and video infrastructure for real-time interactions within the Cantina app. Responsibilities 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 Skills BS or MS in Computer Science, Computer Engineering, or a related field; or equivalent experience Excellent communications skills Experience with C or C++ Strong computer science fundamentals, including familiarity with data structures and concurrent / multithreaded programming Exposure to system programming concepts, including network protocols; memory management; and distributed systems fundamentals Object-oriented programming and design skills Interest in solving challenging, subtle engineering problems Previous experience with WebRTC, streaming protocols, or other media-related technologies Familiarity with audio or video processing techniques and algorithms Experience creating backend server infrastructure Experience developing software for iOS and Android Familiarity with building services using Node.js Familiarity with artificial intelligence and machine learning techniques, particularly in relation to speech recognition and synthesis Benefits Competitive salary and generous company equity Medical, dental, and vision insurance – 99.99% of premiums covered by Cantina 42 days of paid time off, including: 15 PTO days 10 sick days 15 company holidays 2 floating holidays Generous parental leave & fertility support 401(k) retirement savings plan Lifestyle spending account – $500/month to use however you’d like Complimentary lunch and snacks for in-office employees One Medical membership, and more! Company Overview Cantina Labs is a social AI company, developing a suite of advanced real-time models that push the boundaries of expression, personality, and realism. It was founded in 2023, and is headquartered in Brooklyn, New York, USA, with a workforce of 51-200 employees. Its website is Company H1B Sponsorship Cantina Labs has a track record of offering H1B sponsorships, with 9 in 2025, 3 in 2024, 1 in 2023. Please note that this does not guarantee sponsorship for this specific role.