Software Engineer, Product

Cartesia • San Francisco, CA

4d • Onsite

About The Position

Cartesia is hiring a Software Engineer, Product to build and scale the platform infrastructure that powers Cartesia's voice AI products. You'll code composable platform components that accelerate feature delivery across our API and conversational AI systems.

Requirements

• 3+ years of experience as a backend or platform engineer building scalable systems.
• You think in terms of customer outcomes, not just technical requirements.
• Enjoy full ownership of your work, and effectively navigate ambiguous problems to deliver results.
• Strong judgment on when to move fast and when to invest in scalability.
• Comfort across our stack: TypeScript on the frontend, Python + Go on the backend. You don't need to be an expert in all three, but you're not afraid of any of them.

Nice To Haves

• Experience with PostgreSQL, Redis, NATS, or similar data and messaging systems at scale.
• Familiarity with real-time streaming systems, or WebRTC.
• Background in observability infrastructure (Datadog, Prometheus, OpenTelemetry) and building internal tooling for debugging production systems.

Responsibilities

• Build and scale product platform components to support Cartesia's growth.
• Own critical product infrastructure end-to-end, such as realtime infra.
• Work alongside product teams to identify shared needs and build platform primitives that multiply their velocity.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed
• Number of Employees: 51-100 employees