Software Engineer, Product

Cartesia • San Francisco, CA

6d • $180,000 - $250,000 • Onsite

About The Position

Cartesia builds real-time multimodal intelligence: fast, state-of-the-art voice models and the products that make them useful. We started as a research lab, pioneered the state space model architecture, and now we're bringing that research to customers through intuitive tools for creating, testing, and shipping with voice. In this role, you'll build the product experiences around Cartesia's models. You may work across Voices, Playground, and other core surfaces as priorities evolve. You'll own work end-to-end and directly shape the quality, usability, and developer experience of how customers discover our models, understand what they can do, and put them into production.

Requirements

• Experience building and operating customer-facing software in production, ideally at a high-growth startup. We care more about what you've shipped than strict years of experience.
• Strong product instincts: you think in customer outcomes, usability, quality, and developer experience, and you have opinions on what to build and why.
• Full-stack range and the ability to own a product surface across frontend, backend, APIs, data, and operational concerns.
• Fluent use of coding agents and a habit of keeping pace with the frontier.
• Clear communication with technical and non-technical audiences, strong cross-functional partnership, and a sharp presence in product and design reviews.

Nice To Haves

• Experience building developer tools, creative tools, playgrounds, or API-adjacent products.
• Experience building AI-powered products and translating model capabilities, limitations, and quality tradeoffs into understandable user experiences.
• Strong frontend craft with React and TypeScript, including polished, highly interactive workflows.
• Experience with audio, media, real-time systems, product analytics, experimentation, or evaluation infrastructure.

Responsibilities

• Build polished, intuitive experiences across Voices, Playground, and adjacent product surfaces, turning powerful model capabilities into workflows customers can understand and use.
• Own customer problems end-to-end, from discovery and prototyping through implementation, launch, measurement, and iteration.
• Improve the speed and confidence with which customers can evaluate, configure, and integrate Cartesia's voice models.
• Define how product quality is measured, building analytics, evaluations, experiments, and regression tracking that reveal where experiences succeed or break down.

Benefits

• Competitive base salary alongside attractive equity package.
• Fully covered medical insurance along with dental and vision for you and your family.
• 9 weeks paternity & 12 weeks maternity leave
• 401(k)
• A monthly stipend to help you get to and from the office.
• Take as much time as you need to recharge your batteries.
• Lunch, dinner and plenty of snacks, provided daily.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed