Backend & Infra Engineer — Scale, Reliability & Ownership

Overjoy is hiring a Backend & Infra Engineer to co-own the backend systems and infrastructure foundations at scale. This high-leverage role focuses on reliability, scalability, and data integrity, working with the founding team on data ingestion, background processing, database infrastructure, and AI agent infra.

You'll ensure high-volume ingestion, durable long-running agents, and observable, performant APIs as load grows, shaping backend architecture and developer experience at a fast pace.