---
title: 'Executive Business Partner at Cartesia'
canonical: 'https://feeny.ai/job/executive-business-partner-cartesia-san-francisco-8qnsazrv2fbs'
type: 'job'
last_seen: '2026-09-08'
---

# Executive Business Partner at Cartesia

- **Company:** Cartesia
- **Location:** San Francisco, CA
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-09-04
- **Last confirmed live:** 2026-09-08
- **Apply:** https://jobs.ashbyhq.com/cartesia/d81cb0a1-5955-45ee-8afd-f5e3e80b72d9

## Job description

## ABOUT CARTESIA

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

We are seeking a highly motivated Executive Business Partner to support our four co-founders https://www.cartesia.ai/company.

You'll sit at the center of how the founders work - managing complex calendars and logistics, but also creating structure around planning, communication, and follow-through. You'll work closely with leaders across the company and have a unique view into how the business operates.

This is not a traditional EA role. The job includes administrative work, but the bigger opportunity is the judgment you bring and the systems you build. You'll often be handed an ambiguous problem rather than a clear brief and expected to figure out what needs to happen, bring the right people together, and drive it through to completion.

You should be comfortable operating with a high degree of autonomy, knowing when to take something off a founder's plate, when to push for clarity, and when to bring an issue back to the founders or leadership team.

This is a fully in-person role based in our San Francisco office.

## KEY RESPONSIBILITIES

Executive Support & Prioritization

- Manage complex, rapidly evolving calendars across four founders, prioritizing competing requests with sound judgment and protecting time for high-value work
- Anticipate needs, prepare founders fully for meetings, and make thoughtful tradeoffs instead of accommodating every request
- Handle confidential information and sensitive situations with maturity and discretion
- Own travel planning, itineraries, and expenses
- Provide limited personal support to founders as needed

Operations & Execution

- Build and run the operating rhythms that keep the company aligned, including leadership meetings, annual planning, OKR processes, cross-functional reviews, and other key business cycles
- Coordinate board meetings, working directly with board members' EAs, and support board materials preparation
- Draft agendas, capture key decisions, and track follow-ups so commitments close

Founder & Cross-functional Partnership

- Partner closely with the co-founders on business needs and serve as a trusted partner on how they operate
- Push for clarity and follow-through across the team on the founders' behalf
- Build strong relationships with functional leaders and other key stakeholders across the company
- Represent the founders thoughtfully with external stakeholders, including investors, partners, and candidates

## QUALIFICATIONS

- 5 to 8 years of experience in executive support, executive operations, or a similar role supporting senior executives at a fast-moving, high-growth company
- High agency; you create structure where none exists and solve problems without a fully defined playbook
- Comfortable managing and diplomatically pushing back on strong personalities, competing priorities, and changing plans
- Able to coach executives on how to work effectively with an executive partner
- Equally strong at tactical support (calendars, travel) and higher-leverage work (planning, operating rhythms)
- Excellent judgment about what to own directly, when to push, and when to bring something to a founder or the leadership team
- Strong writer and communicator who can get a room aligned
- Discretion and maturity when handling sensitive information
- Bonus points for experience with first-time founders or executives, or building operating rhythms from scratch.

Note: Cartesia participates in E-Verify and will provide the federal government with Form I-9 information to confirm employment eligibility after hire.

## MORE DETAILS

🏢 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.

## OUR BENEFITS (US EMPLOYEES ONLY)

💰 Compensation Competitive base salary alongside attractive equity package.

🩺 Health Insurance Fully covered medical insurance along with dental and vision for you and your family.

🧑‍🧑‍🧒‍🧒 Parental Leave 9 weeks paternity & 12 weeks maternity leave

🏦 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

## OUR COMMITMENT TO EQUAL OPPORTUNITY

Cartesia is an equal opportunity employer. We consider qualified applicants without regard to race, color, religion, sex, national origin, age, disability, veteran status, genetic information, or any other legally protected status.

## About Cartesia

## Company Overview

- **One-liner**: Cartesia builds next-generation foundation models using state space models (SSMs) to deliver ubiquitous, interactive, real-time AI that runs wherever you are.
- **Entity Type**: Private (Series A-II; total funding $191M)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2023
- **Founders**: Karan Goel (CEO), Albert Gu (Chief Scientist & Co-founder), Brandon Yang (Co-founder), Arjun Desai (Co-founder)

## Core Business

- **Primary industry/industries**: Artificial Intelligence – foundation models, real-time voice AI, multimodal AI
- **Target customers**: B2B – developers and enterprises building real-time AI applications in healthcare, robotics, gaming, customer service, localization, recruiting, finance, and more.
- **Mission or purpose statement**: “Build the next generation of AI: ubiquitous, interactive intelligence that runs wherever you are.”

## Products & Services

- **Sonic**: The world’s fastest generative voice API – a streaming text-to-speech API that supports laughter and emotion, designed for real-time voice agents (SaaS / API).
- **Ink**: Likely a multimodal generation product (text-to-image or visual) – part of Cartesia’s broader SSM platform.
- **Agents**: A framework or tool for building real-time AI agents using Cartesia’s foundation models.
- **Core foundation models**: State-of-the-art SSM-based models for text, audio, video, images, and time-series data (research-backed platform).

## Market Standing

- **Valuation/Market Cap**: Not disclosed (private company)
- **Key Metric**: Total Funding – $191M  
  - Seed Round (Dec 2024): $27M  
  - Venture Round (Nov 2025): $100M  
  - Series A (Mar 2025): $64M (latest round)
- **Notable Investors/Partners**: Index Ventures, Lightspeed Venture Partners, Kleiner Perkins, NVIDIA, A* Capital, and more.
- **Growth Signals**:  
  - 88 employees with +6.5% monthly headcount growth  
  - 34 active job postings (+17.2% monthly, +9.7% quarterly)  
  - Website traffic up +73.2% year-over-year (380k monthly visits)  
  - Team hails from Stanford, CMU, Meta, Scale AI, Cruise, and other top AI labs

## Competitive Advantages

- **Pioneering SSM Architecture**: The founding team invented State Space Models (SSMs) at Stanford AI Lab – a subquadratic alternative to transformers that enables higher quality and far more efficient inference for real-time, multimodal AI.
- **Speed & Efficiency**: Sonic (voice API) is marketed as the world’s fastest generative voice API, critical for latency-sensitive applications.
- **World-class Backing**: Supported by top-tier VCs (Index, Lightspeed, Kleiner Perkins) and NVIDIA, providing both capital and ecosystem access.
- **Research‑to‑Product Pipeline**: Direct lineage from academic breakthroughs to production-grade APIs, giving them a deep technical moat.

## Strategic Focus

- **Real‑time, Ubiquitous AI**: Expand from voice to broader multimodal capabilities, powering interactive AI that runs on edge and cloud.
- **Vertical Expansion**: Target high‑value use cases in customer service, healthcare, gaming, robotics, and localization.
- **Talent Acquisition**: Aggressively hiring across research, engineering, product, and go‑to‑market roles (34 current openings).
- **Open‑source & Community**: Maintain a developer‑friendly stance with a Discord community and free trial of Sonic.

## Why Work Here

- **Cutting‑edge AI Research**: Work alongside the original inventors of SSMs and contribute to foundational AI architecture.
- **Fast‑growing Startup**: 88 employees with rapid headcount growth and significant funding – offers ownership and impact.
- **Values‑driven Culture**: “Get the fundamentals right,” “Build to solve problems,” “Aim beyond what’s possible,” “Be honest,” “Have fun with it.”
- **Remote‑flexible**: Presence across 5 countries (US, UK, India, South Korea, Switzerland) suggests a distributed team with flexible working arrangements.
- **Engineering‑heavy**: 39% of staff in technical roles, 8% in research – strong emphasis on technical excellence.
- **Notable Perks**: Not explicitly listed, but a high‑caliber team (Stanford, Meta, Scale AI) and top investor backing indicate competitive compensation and a vibrant startup environment.

## Sources

1. [cartesia.ai](https://cartesia.ai/company/)
2. [LinkedIn – Cartesia](https://www.linkedin.com/company/cartesia-ai)
3. [CB Insights – Cartesia](https://www.cbinsights.com/company/cartesia)
4. [Lightspeed Venture Partners – Cartesia](https://lsvp.com/company/cartesia/)
5. [Jobs.ashbyhq.com – Cartesia Careers](https://jobs.ashbyhq.com/cartesia)

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