a16z Senior Founding Backend Architect
Summary
Build core infrastructure and AI-native platforms, define system architecture, design APIs, and own scalable systems for emergent AI experiences.
Arbor is seeking a Senior Founding Software Engineer to build core infrastructure and AI-native platforms. You will define system architecture, design APIs, and own major technical areas end-to-end as one of the earliest engineers.
Based in the San Francisco Bay Area, you’ll work with founders to shape architecture, tooling, and engineering culture while delivering high-performance, scalable systems that power emergent AI experiences.