Real-Time Voice AI · San Francisco
Our mission is to architect AI that learns from and interacts with the world like humans do.
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 Product Manager, Infrastructure to own the platform our customers and internal teams depend on — the APIs, SDKs, deployment surfaces, and infrastructure primitives that make Cartesia's foundation models usable in production. Your customers are engineers, and your work shows up in design docs, deal cycles, and CTO conversations as much as it does in product specs. You'll partner with engineering, research, and GTM to ship a platform that earns enterprise trust, and to run the enterprise motions that come with it.
Your Impact
Own the roadmap for Cartesia's infrastructure platform — APIs, SDKs, deployment models, and the developer experience layered on top
Translate enterprise deal signals into a coherent product direction; separate one-off asks from real platform investments
Run customer technical reviews, partner with FDE/ SE/ olutions teams inside live deals, and debrief with CTOs to convert technical wins into closed business
Make and defend architectural tradeoffs (latency vs. throughput, abstraction level, deployment model) in design reviews and PRDs
Write the PRDs, GTM primers, deprecation comms, and competitive teardowns that the company runs on
What You Bring
5–8 years in product, including 3+ years in infrastructure, developer tools, or AI/ML platform PM — shipping against a real engineering roadmap
Strong technical fluency: you can read a design doc, run an architecture review, and hold opinions on tradeoffs from first principles. You don't ship code, but you debug in conversation
Has owned a multi-tenant platform, dev tools product, or B2B infra product where the customer is also an engineer
Enterprise fluency: comfortable in a technical review, a sales pitch, and a CTO debrief — and able to translate between all three. Has worked alongside FDE/SE /Solutions teams in active deal cycles
Track record of saying no with clarity, not just yes — and shipping iteratively rather than waiting on a perfect spec
Clear, structured writer: your PRDs, GTM primers, and deprecation comms all land. Fluent with modern AI tools (Claude, Cursor, etc.) as a force multiplier
Nice to Have
Voice/real-time /streaming systems experience (LiveKit, Twilio, Daily, Pipecat, telephony / SIP)
On-prem, VPC, or air-gapped deployment experience; familiarity with customer compliance reviews
GPU/inference-stack literacy (vLLM, TensorRT-LLM, SGLang, KV cache, GPU SKUs)
Prior experience as a founding/early platform PM at a Series A/B AI infra company
🏢 In-office policy: We’re an in-person team based out of offices in 🇺🇸 San Francisco, 🇬🇧 London and 🇮🇳 Bangalore. We love being in the office, hanging out together, and learning from each other every day.
🌎 Visa sponsorship: We provide visa sponsorship support and assess each circumstance on a case-by-case basis. However, visa sponsorship is dependent on many factors, including the role you are applying for, and the location you are going to be based, and so we can't always guarantee success. Your Recruiter will work with you to understand your visa sponsorship needs from the first call.
🚢 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.
💰 Compensation. Competitive base salary alongside attractive equity package.
🩺 Health Insurance. Fully covered medical insurance along with dental and vision for you and your family.
🏦 401(k)
🚆 Commuter Allowance. A monthly stipend to help you get to and from the office.
🏖️ Flexible PTO. Take as much time as you need to recharge your batteries.
🍲 Meals & Snacks. Lunch, dinner and plenty of snacks, provided daily.
🦖 Your own personal Yoshi.