Software Engineer, AI & Developer Experience

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

Cartesia is hiring an AI-native Software Engineer, AI & Developer Experience to optimize developer experience and maximize ship velocity for Cartesia engineers by building tooling at the frontier of AI coding. You will also build a playbook to enable engineers and non-engineers alike to rapidly ship consistent, maintainable internal tools unassisted.

Your Impact

• Build workflows that enable Cartesia to go from problem to solution with minimal human intervention.

• Stay updated with the latest developments in AI-assisted development and advocate for AI-assisted development at Cartesia.

• Build automated end-to-end dev & evaluation harnesses that enable coding agents to iterate on solutions and self-correct.

• Build a playbook that the Cartesia team can follow to build data-connected, IAM-aware internal tooling for both human-in-the-loop and automated workflows.

What You Bring

• 2+ years of experience leading software engineering teams.

• Strong software engineering fundamentals with a focus on writing maintainable code.

• Expert in TypeScript, Python, or Go.

• Deep curiosity about the state of agentic coding tools and how to optimize agent-assisted workflows.

• Constantly updated on advancements in AI-assisted development and eager to validate them in a real-world setting.

• Strong writing skills that help you craft detailed, nuanced agent instructions and communicate internally and externally about your learnings.

• Experience collaborating with non-technical teams to build internal tools.

Nice-to-Haves

• Active online presence on X/Twitter, LinkedIn, or your own blog so you can share our learnings with the world.

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.