Build intuitive product experiences around AI voice models at a pioneering startup in San Francisco.
Posted by employer 1 day ago
First seen on Joblaze 18 hours ago
Last verified on the company career page 18 hours ago
Skills & Technologies
What you'll build
- Build polished, intuitive experiences across Voices and Playground
- Own customer problems end-to-end
- Improve customer evaluation and integration of voice models
- Define product quality measurement
- Build analytics and evaluation infrastructure
Must have
- Experience building customer-facing software in production
- Strong product instincts
- Full-stack range
- Clear communication with technical and non-technical audiences
Nice to have
- Experience building developer tools
- Experience building AI-powered products
- Strong frontend craft with React and TypeScript
- Experience with audio and media systems
AI in the day-to-day
Cartesia builds real-time multimodal intelligence with fast, state-of-the-art voice models.
Requirements
- Visa
- Sponsorship available
Not disclosed in this posting: compensation, years of experience.
Benefits
Joblaze summary
In this role, the Software Engineer at Cartesia focuses on developing user-friendly product experiences around advanced voice models, ensuring that customers can effectively discover and utilize these technologies. The position requires a full-stack skill set, with an emphasis on building customer-facing software and a strong understanding of usability and product quality. This role is ideal for someone with experience in high-growth startups who can navigate both technical and non-technical discussions. Cartesia fosters a collaborative environment, emphasizing speed and quality in their innovative projects.
Joblaze insights
- Listed today — first seen on Joblaze September 19, 2026. Last confirmed on Cartesia's careers page September 19, 2026.
- AI/ML appears in 33.6% of 125 comparable mid product roles in United States.
Quick facts
- Is the Software Engineer, Product role remote?
- No — this is an on-site role in San Francisco, CA, United States.
- Where is the role based?
- Cartesia is hiring for this position in San Francisco, CA, United States.
- What's the tech stack?
- Joblaze extracted these technologies from the posting: AI/ML, React, TypeScript.
- Does Cartesia sponsor work visas for this role?
- Yes — the posting indicates visa sponsorship is available for the right candidate.
- What seniority level is this role?
- Cartesia targets mid-level candidates for this position.
- Is this full-time or contract?
- Full-time for this Software Engineer, Product role at Cartesia.
From the original posting
About the Role
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.
Your Impact
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.
What You Bring
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.
🏦 401(k)
🦖 Your own personal Yoshi
Standard company text repeated across Cartesia's postings is omitted here.