Senior ML Engineer: LLMs, RAG & Production Systems

Flagship Pioneering is seeking a Senior Machine Learning Engineer to design, build, and deploy ML systems powering our platform. You will focus on LLMs, retrieval-augmented generation, and agentic orchestration, influencing architecture and ML best practices across teams.

You will own end-to-end ML pipelines, work with data engineers and scientists, and help productionize models with robust monitoring and cost-conscious deployment.

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