My sister's path was getting an unrelated Ph.D. in chemistry, getting a postdoc at Lawrence Berkeley Lab in battery chemistry, and then getting a job at a start

My sister's path was getting an unrelated Ph.D. in chemistry, getting a postdoc at Lawrence Berkeley Lab in battery chemistry, and then getting a job at a startup in the field that's commercializing and extending its founder's university research. That company appears to hire chemists, ChemEs, and MechEs/industrial engineers right now.