Senior Scientist, Protein Engineering - Shape a New Platform

Flagship Pioneering's FL129 is seeking a Senior Scientist to lead the development of a novel platform for protein engineering. You will design, build, and interrogate large protein variant libraries, linking genotype to phenotype at scale, and contribute to shaping the company's scientific direction from day one.

You will collaborate across experimental and computational teams, drive technology adoption, and help build a focused, high-impact team in a startup environment.