Senior Backend Engineer - Fullstack & API Architect (SF)

Envoy is seeking a Senior Fullstack Engineer to own meaningful product areas end-to-end, blending backend systems, APIs, and frontend work at scale. This on-site role emphasizes scalable backend design, data modeling, and contributing to frontend experiences across tens of thousands of locations. You will collaborate with Product, Design, and Engineering, design relational schemas (Postgres), and drive end-to-end ownership across the stack, including four days per week on-site at the SF HQ.