Firecrawl is building ML-powered search and data AI agents. You’ll train and ship ranking and relevance models for our fast-growing product, then extend this work to extraction quality and LLM-driven features. You’ll also own how we measure success with AB testing frameworks and experimentation initiatives. The Toronto Hub is one of two offices, with on-site work five days a week. This full time role requires 3+ years of production ML experience and authorization to work in the US or Canada.