Founding Product Marketer
Cartesia
Job Description
About the Role
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 hiring our first Founding Product Marketer to shape how we bring products to market, tell our story, and drive adoption among developers, creators, and enterprise customers. This is a great opportunity to join at the ground level and build product marketing from scratch at one of the most exciting companies in AI. You'll set the tone for our positioning, launches, and customer engagement, with direct access to founders and the chance to grow into a leadership role as the team scales.
Key Responsibilities
- Own and run product launches, ensuring customers and the broader market clearly understand new features and updates.
- Lead product-led growth initiatives, including designing onboarding flows, in-product messaging, and content that drives self-serve adoption and engagement.
- Write and edit high-impact customer-facing content including website copy, landing pages, newsletters, case studies, and blog posts.
- Develop and maintain personas, messaging frameworks, and positioning across all product lines.
- Conduct competitive intelligence and translate insights into clear positioning and differentiated narratives.
- Partner with Product and GTM teams to cultivate customer feedback loops and use them to shape roadmap and messaging.
- Own growth marketing initiatives, ensuring content is optimized for discoverability and engagement, as well as managing any vendor/agency relationships.
- Contribute to GTM efforts with sales enablement support, such as adapting messaging for customer conversations.
Requirements
- 5+ years of technical product marketing experience, ideally in infrastructure, developer tools, or generative AI.
- Experience working in an early-stage or high-growth technology startup environment.
- Proven experience driving or enabling product-led growth initiatives, including onboarding, in-product messaging, or self-serve activation.
- Proven track record of owning end-to-end launches and driving measurable growth.
- Experience creating repeatable launch playbooks and scaling marketing programs from 0 to 1.
- Strong copywriting and storytelling skills with the ability to make technical concepts accessible.
- Experience collaborating cross-functionally with Product, Sales, and Growth.
- Scrappy, entrepreneurial mindset—comfortable thriving in an unstructured, fast-moving environment, and effective at managing ambiguity and rapidly shifting priorities.
- Data-driven: track KPIs like adoption, market share, and campaign ROI to guide strategy.
Nice to Have
- Experience marketing developer-facing products or cultivating developer communities.
- Hands-on exposure to growth marketing, SEO, and KOL management.
Qualifications
- No specific formal educational qualifications specified in the description.
Benefits & Perks
- 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.
Working at Cartesia
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 and design along the way. We support each other. We have an open and inclusive culture that's focused on giving everyone the resources they need to succeed.
Job Details
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About Cartesia
Website
cartesiafinance.com
Location
San Francisco, CA
Industry
Custom Computer Programming Services
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