Backend Engineer at Tavus

About the role

Tavus is a $66M Series B AI company backed by Sequoia, CRV, Scale, and YC, building real-time video avatars that allow users to clone themselves and speak any language at scale.

What You Will Do

• Own the end-to-end revenue plumbing for Tavus's AI platform, managing usage-based billing across Stripe, Orb, and Apple IAP.
• Architect and lead the transition to "Pricing V2," implementing usage-metering pipelines, concurrency holds, and automated provisioning for enterprise clients.
• Build robust infrastructure for coupon and credit lifecycles, enabling the growth team to launch self-serve promotions without direct engineering intervention.
• Ensure financial correctness across parallel payment providers (Orb, Stripe, Apple IAP) by developing idempotent webhook processing and reconciliation pipelines to prevent revenue loss.
• Scale distributed systems to ensure event durability and idempotency as the company expands globally into new markets.

Why this role is remarkable

• Own the mission-critical revenue domain at a fast-growing, ~40-person startup where AI is the core product, not just a marketing hook.
• Join a well-funded Series B company backed by top-tier investors like Sequoia and CRV, offering the stability of capital with the impact of an early team.
• Solve complex distributed-systems challenges where "close enough" isn't an option, moving from manual workarounds to sophisticated, automated billing infrastructure at scale.

Requirements

• Proven experience building or owning usage-based billing systems, ideally with deep expertise in Stripe and exposure to Orb or Apple IAP.
• Strong proficiency in TypeScript and NestJS for backend services, with the ability to manage AWS data plumbing including Lambda, DynamoDB, and CDK.
• Deep understanding of distributed systems principles, including event durability, reconciliation, and exactly-once processing, specifically within a payments or fintech context.

Location: San Francisco, USA