Design Engineer

ABOUT CARTESIA Our mission is to build the next generation of AI: ubiquitous, interactive intelligence that runs wherever you are. Today, not even the best models can continuously process and reason over a year-long stream of audio, video and text—1B text tokens, 10B audio tokens and 1T video tokens—let alone do this on-device. We're pioneering the model architectures that will make this possible. Our founding team met as PhDs at the Stanford AI Lab, where we invented State Space Models or SSMs, a new primitive for training efficient, large-scale foundation models. Our team combines deep expertise in model innovation and systems engineering paired with a design-minded product engineering team to build and ship cutting edge models and experiences. We're funded by leading investors at Index Ventures and Lightspeed Venture Partners, along with Factory, Conviction, A Star, General Catalyst, SV Angel, Databricks and others. We're fortunate to have the support of many amazing advisors, and 90+ angels across many industries, including the world's foremost experts in AI. ABOUT THE ROLE Cartesia is hiring a Design Engineer to work on React design systems and product polish on our web surfaces. YOUR IMPACT - Own the appearance of our web-based surfaces, with high agency to proactively fix design and performance issues. - Design and implement UI features from scratch. - Work on last-mile polish, making sure every pixel counts. - Develop and maintain a React design system intended to multiply product engineering velocity. - Build a process that enables Cartesia to proactively identify gaps & opportunities in the design of its web surfaces. WHAT YOU BRING - 2+ years of experience - Exceptional at both design and engineering - Ability to spot pixel-level imperfections in digital interfaces; on the engineering side - Proficient in TypeScript, with a focus on writing well-typed, maintainable code - Portfolio (website or social profile) showcasing design engineering work - Perfectionism in the fundamentals: last-mile polish, clear copy, accessibility, and web performance - Experiencing developing and maintaining React-based design systems from scratch NICE-TO-HAVES - Experience working with shadcn/ui, Radix Primitives, or Base UI - Experience optimizing React interfaces to minimize renders, possibly with profiling tools like React Scan WHAT WE OFFER 🍽 Lunch, dinner and snacks at the office. 🏥 Fully covered medical, dental, and vision insurance for employees. 🏦 401(k). ✈️ Relocation and immigration support. 🦖 Your own personal Yoshi. OUR CULTURE 🏢 We’re an in-person team based out of San Francisco. We love being in the office, hanging out together, and learning from each other every day. 🚢 We ship fast. All of our work is novel and cutting edge, and execution speed is paramount. We have a high bar, and we don’t sacrifice quality or design along the way. 🤝 We support each other. We have an open & inclusive culture that’s focused on giving everyone the resources they need to succeed.