Sim

Join Sim’s core product team to build an AI workspace for teams creating agents, owning features end to end from concept through production. The role blends product-focused software engineering with usability, reliability, user experience, models, and design.

Build Sim’s agent harness—the core agent that plans work, calls tools, uses memory, recovers from failure, and runs reliably at scale. You’ll turn a clear understanding of LLM behavior into robust infrastructure for more than 100,000 builders.

Build Sim’s GTM and RevOps infrastructure from zero, including automated workflows, AI agents, tool integrations, and reliable data flows. This foundational engineering role offers broad ownership and direct impact on how Sim scales its go-to-market function.