Latest Fullstack Engineering jobs at Sim

Build and own core product capabilities for an AI workspace, spanning usability, reliability, performance, and user experience from concept through production. The role requires strong product engineering, an interest in AI models and design, and end-to-end ownership.

Build the agent harness that plans tasks, calls tools, uses memory, recovers from failures, and operates reliably at scale. The role requires strong reasoning about LLM behavior and the ability to translate it into robust infrastructure.