Codiak BioSciences is seeking a Scientist, Purification (Downstream PD) to develop the company’s novel exosome purification platform. Responsibilities will include providing technical/scientific expertise and leadership in all downstream areas, such as filtration, centrifugation, various types of chromatography, high throughput technology, virus inactivation, formulation, etc. Background in biochemistry, bioanalytics, virus production and purification will be a plus. Understanding of exosome biology, isolation and characterization will be an additional advantage. This is a unique opportunity for a strong scientist/biochemical engineer to contribute experimentally, as well as intellectually, to both early- and late-stage development of a novel exosome production platform. As part of a start-up, the candidate will be uniquely exposed to the full range of company activities within and outside the lab. The candidate will also play a critical role in helping shape Codiak’s scientific and business direction.