cartesia

Cartesia is seeking a Product Support Engineer to ensure customer success on their AI platform. This role involves resolving complex technical issues, providing world-class support, and collaborating closely with engineering and product teams. You will be a key point of contact for customers, influencing the product roadmap and improving reliability through hands-on feedback and issue reproduction. This is a critical position for shaping the customer experience and setting support standards at a cutting-edge AI company.

Cartesia is a foundation model company pioneering AI that learns and interacts with the world like humans. Our mission is to architect the next generation of AI, building on our invention of State Space Models (SSMs). We are a well-funded startup with a team of experts in AI research, systems engineering, and product development. As a Technical Sourcer, you will be instrumental in our growth by identifying and engaging top-tier technical talent. This is a hands-on role where you will source, screen, manage candidates, and contribute to strategic hiring initiatives. You will be responsible for developing and executing innovative sourcing strategies across various channels, building robust candidate pipelines, and crafting personalized outreach to attract exceptional individuals.

Cartesia is seeking a Technical Account Manager based in India to manage the entire post-sale technical relationship for enterprise customers. This role involves being the primary point of contact, driving customers from contract signing through production and beyond, and contributing to the company's expansion in the region. You will work autonomously within your region while staying closely connected with the San Francisco HQ team on strategy and product roadmaps. The core of the role is to ensure customer success by driving them to go-live, maintaining account health, and growing their usage over time through problem-solving, removing blockers, and coordinating resources.

Cartesia is seeking a Product Manager, Infrastructure to lead the platform that powers our foundation models. This role involves owning the APIs, SDKs, deployment surfaces, and infrastructure primitives that enable our customers and internal teams to effectively use Cartesia's AI. You will work closely with engineering, research, and go-to-market teams to build and ship a robust platform that earns enterprise trust and supports complex enterprise motions. Your work will directly impact design documents, sales cycles, and high-level technical discussions with CTOs.

Cartesia is seeking a Software Engineer, Agents to develop the backend platform for Line, their voice agents product. This role involves owning backend development end-to-end, shaping the latency, reliability, and developer experience of agents built on the Cartesia platform. The position requires building and operating distributed systems, taking projects from specification to production, making critical architectural decisions, and defining the developer experience for engineers using the platform.

Cartesia is pioneering new AI model architectures, inspired by human learning and interaction. Our mission is to build AI that learns from and interacts with the world. We are seeking a Technical Account Manager to lead the post-sale technical relationship with enterprise customers, guiding them from contract signing through production and ongoing growth. This role is crucial for driving customer success, resolving technical challenges, and expanding product adoption within their accounts.

Cartesia is seeking a Forward Deployed Engineer to join their mission of building real-time multimodal intelligence. This role involves embedding directly with enterprise customers to deliver agentic voice AI solutions into their production environments. The Forward Deployed Engineer will be responsible for maximizing customer success and revenue by transforming Cartesia's core product into deployed, high-impact solutions. This is an opportunity to work on cutting-edge AI models and experiences, with a focus on innovation and rapid execution.

Cartesia is pioneering AI that learns from and interacts with the world like humans do, focusing on novel model architectures. We are seeking a Forward Deployed Engineer to join our mission of building real-time multimodal intelligence. This role involves embedding directly with enterprise customers to deliver agentic voice AI solutions into their production environments, maximizing customer success and revenue by transforming our core product into high-impact, deployed solutions.

Cartesia is seeking an Enterprise Engineer to help build real-time multimodal intelligence by delivering agentic voice AI solutions to customers. This role involves architecting and building enterprise-grade systems, owning the design and delivery of platform capabilities shaped by customer needs, and transforming recurring patterns from deployments into scalable platform primitives. The ideal candidate will define and improve reliability, security, and operational maturity across the company's enterprise offerings, playing a key role in scaling Cartesia's solutions in demanding enterprise environments.

Cartesia is seeking a Researcher for their Post-Training team to develop methods and systems that make multimodal models adaptive, aligned, and grounded in human intent. This role involves working at the intersection of machine learning research, alignment, and infrastructure, focusing on preference optimization, model evaluation, and feedback-driven learning. You will explore how feedback signals can guide models to reason more effectively across modalities and build the infrastructure to measure and improve these behaviors at scale. Your work will directly influence how Cartesia's foundation models learn, improve, and connect with people.

The New Horizons Evaluations team is reimagining how we measure progress in interactive machine intelligence. As Evaluations Lead, you will design evaluation frameworks that capture not just what models know — but how they reason, remember, and interact over time. You’ll work at the intersection of research, product, and infrastructure to develop metrics, systems, and studies that define what “intelligence” means in the next generation of AI. This role is ideal for someone who combines scientific rigor with technical execution, and who’s deeply curious about how people use — and want to use — intelligent systems. Your work will shape how Cartesia builds and evaluates frontier models, ensuring that progress isn’t measured solely by static benchmarks, but by deeper qualities like understanding, naturalness, and adaptability in real-world interaction.

Cartesia is seeking an Inference Engineer to advance its mission of building real-time multimodal intelligence. This role involves designing and building a low-latency, scalable, and reliable model inference and serving stack for cutting-edge foundation models. You will collaborate closely with research and product engineering teams to serve products efficiently and reliably, and design robust inference infrastructure with monitoring. This position offers significant autonomy to shape products and influence how AI is applied across various devices and applications.