Magical is an agentic automation platform bringing state‑of‑the‑art AI to healthcare—delivering AI agents that actually work in production.

About The Role As a Senior Backend Engineer on the Agent Platform team, you will build the foundational systems that power our AI agents—from agent orchestration and state management to model integration and evaluation pipelines. This is platform engineering: building the infrastructure that enables our team to ship reliable, production‑grade agentic automation. You'll work at the cutting edge of multi‑agent systems, designing how agents collaborate to solve complex healthcare workflows. You'll own critical backend services end‑to‑end and build the verification systems and evaluations that guarantee our agents do the right thing every time. This is a hybrid role with 2 days per week in our Toronto office.

In this role, you will

Design and build core platform systems for agent orchestration, memory, and state management