AI Platform Engineer, Backend

As an AI Platform Backend Engineer, you will own and build the core backend systems that power Brain Co.’s AI platform. This is a foundational, high-leverage role: your work enables product teams, ML engineers, and customer deployments to move faster and more safely. You will design and operate backend services that support complex AI workflows (multi-step reasoning, tool use, human-in-the-loop processes), with a strong focus on scalability, reliability, and developer experience. You’ll take systems from early technical exploration through production deployment, often in ambiguous problem spaces where you help define the right solution. This role offers significant autonomy and the opportunity to grow into a broader technical and organizational leadership role over time.