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

We're looking to hire a Technical Account Manager to own the enterprise customer technical relationship from signed contract through production and beyond. As a key member of our early GTM team, you'll drive customers to go-live, keep them healthy, and grow their usage over time— scoping problems, removing blockers, bringing the right people, and driving to conclusion.

Your Impact

• Own the full post-sale technical relationship for a book of enterprise accounts, from pre-go-live scoping through post-launch stabilization and expansion.

• Drive customers to go-live with urgency and precision: define success criteria with senior technical stakeholders, design implementation strategy per customer, run daily standups and 30/60/90 onboarding reviews, and project manage the rollout end-to-end.

• Independently triage customer technical issues — distinguishing product bugs, integration failures, and customer-side misconfigurations — and route to the right internal owner on the first try.

• Lead FDEs through implementation: set direction, manage scope, and serve as the primary technical counterpart for the customer, not a project manager with a spreadsheet.

• Translate customer needs into crisp internal documentation like clear bug reports, feature requests with full context, and scope change docs, not vague Slack threads.

• Monitor account health proactively, identify at-risk customers before problems escalate, and drive consumption and usage growth across the book.

• Surface expansion opportunities to AMs with specific context. Flag upsell-ready accounts, build the handoff, and understand the revenue connection between customer health and growth.

• Build the TAM playbook as a byproduct of execution: 30/60/90 framework, escalation paths, go-live checklists, and technical champion management.

• Partner with Product and Engineering as the voice of the customer — turn customer pain into platform improvements and close the feedback loop.

What You Bring

• 6+ years of experience in technical account management, customer success, solutions engineering, or a related customer-facing technical role at a high-growth B2B company

• Genuinely technical: can read API docs, understand system architecture, triage integration issues, and hold a real conversation with an engineer

• Proven ability to manage a complex multi-stakeholder book simultaneously: know which fires to fight and which to watch, with prioritization judgment over process compliance

• Strong project management instincts without being a "project manager" — can run a complex implementation end-to-end and keep 15 accounts moving at once

• Excellent problem scoper: hears "it's broken" and turns it into a clear problem statement, routes it correctly on the first try, and drives to resolution

• Strong communicator across altitudes — can run a daily standup with engineers and a QBR with a VP without losing substance in either direction

• Commercially aware: sees the connection between customer health and revenue growth and actively drives consumption, retention, and expansion — not just satisfaction

• High ownership, high autonomy: comfortable making decisions without asking permission and being accountable for customer outcomes

• Fluent with AI agents and tools to manage account load, automate status tracking, and focus time on judgment-intensive work

Nice to Have

• Experience in voice AI, real-time audio/video, or telephony infrastructure

• Background where technical account management was a revenue-driving function, not a support function

• Infrastructure, developer tools, or API-first product experience

• Experience scaling from Series A/B through growth stage and adapting the customer motion as the business evolves.

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.