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
We're looking for an exceptional Product Manager to join Cartesia and help shape the future of voice AI. In this role, you'll drive product strategy and execution across our platform, working at the intersection of cutting-edge AI technology and real-world customer needs. You'll own the product roadmap for your area, make data-informed decisions, and collaborate closely with engineering, research, design, and go-to-market teams to build products that set the standard for voice AI.
This is a high-impact, high-ownership role at an early-stage company where your work will directly shape Cartesia's trajectory. You'll be embedded in a fast-moving team that cares deeply about quality, craft, and building products developers and enterprises love.
Your Impact
Define and own the product roadmap for your area, translating company strategy into prioritized initiatives with clear goals and measurable outcomes
Partner with engineering and research teams to scope, design, and ship high-quality product experiences— balancing speed with long-term quality
Develop a deep understanding of Cartesia's customers, their workflows, and their pain points through direct engagement, qualitative research, and quantitative analysis
Drive cross-functional alignment across research, data, engineering, design, and GTM teams to prioritize and execute on the highest-impact opportunities
Define success metrics for your product area and establish a culture of measurement, using data to inform decisions and evaluate impact
Conduct competitive analysis to identify gaps, opportunities, and differentiation strategies that position Cartesia as the leading voice AI platform
Communicate clearly and persuasively with both technical and non-technical stakeholders, from individual engineers to executive leadership
Build frameworks and documentation that help internal teams and customers understand product capabilities, limitations, and best practices
What You Bring
6+ years of product management experience with technical products, preferably in AI/ML, developer tools, or infrastructure
Proven ability to define product strategy, make difficult prioritization decisions, and drive execution in a fast-paced environment
Strong analytical mindset with experience defining success metrics, designing experiments, and making data-driven decisions
Deep customer empathy with a track record of conducting user research, synthesizing qualitative feedback, and translating insights into impactful product requirements
Technical fluency to collaborate effectively with ML researchers, data scientists, and engineers— able to engage deeply on implementation tradeoffs
Excellent cross-functional collaboration and communication skills; able to build trust and influence without direct authority
Comfort operating in ambiguity and a strong bias toward action and iterative learning
Nice to Have
Direct experience with voice AI, speech technologies (TTS, STT), or conversational AI products
Background in developer tools, API products, or infrastructure—especially with usage-based or self-serve growth models
Experience building from 0→1 at an early-stage startup, or founder experience
Familiarity with ML model evaluation, A/B testing methodologies, or data pipeline design
SQL proficiency or experience with analytics tools such as Amplitude, Mixpanel, or Looker
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.
Top Skills
What We Do
Our mission is to build the next generation of AI: ubiquitous, interactive intelligence that runs wherever you are. Try Sonic at https://play.cartesia.ai and join our Discord at https://discord.com/invite/gAbbHgdyQM.
