Product Manager

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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.

We’re looking for a Growth Product Manager to drive activation, experimentation, and product‑led growth  our first Growth PM, you’ll play a critical role in shaping how developers discover, adopt, and expand usage of our voice AI platform. You’ll lead data‑informed initiatives that improve user onboarding, increase conversion through self‑serve motion, and help us scale a developer‑first growth engine. This role requires a blend of strategic product thinking, analytical rigor, and empathy for developer users.

You’ll work cross‑functionally with engineering, design, data, marketing, and GTM teams to identify growth opportunities, design high‑impact experiments, and build delightful, frictionless experiences for our developer community.

• Own the end‑to‑end activation funnel — from signup through first value — optimizing each step to improve conversion and retention
• Define and execute a rigorous experimentation roadmap to drive self‑serve adoption, expansion, and monetization
• Partner with engineering and design to create data‑driven onboarding flows, in‑product guidance, and developer success mechanisms
• Collaborate with marketing and Dev Rel to align growth loops across product, docs, and community touchpoints
• Build scalable systems for growth measurement, leveraging analytics and telemetry to identify levers for impact
• Translate insights from quantitative data and qualitative feedback into actionable product improvements
• Champion a PLG mindset across the organization by embedding experimentation and measurement into our product development process

• 6+ years of product management experience, with a focus on growth, activation, or experimentation
• Proven track record of driving measurable product‑led growth at developer‑focused or API‑based companies
• Deep understanding of developer workflows and the nuances of building for technical end users
• Strong analytical and problem‑solving skills; strong proficiency with analytics tools such as Amplitude, Mixpanel, Looker or similar
• Experience designing, running, and interpreting A/B tests and other experimentation frameworks to drive growth
• Demonstrated success in designing and executing growth experiments that impact key business metrics
• Excellent cross‑functional collaboration and communication skills
• Technical background or experience working closely with engineering and data teams

• Experience with usage‑based or freemium models in developer tools, infrastructure, or API products
• SQL Proficiency
• Familiarity with AI/ML or voice technology products
• Experience building growth foundations from 0→1 at an early‑stage (Series A/B) startup or Founder experience
• Background in data analytics, product instrumentation, or user lifecycle modeling

• 🍽 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

• 🏢 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.

Mid‑Senior level

Full‑time

Product Management and Marketing

Software Development