[7] Anderson started his career in 1989 as a process engineer for research and development at Ethyl Corporation in the Netherlands and Belgium.

[6][8] In 2006, Anderson joined Genentech, where he eventually became the senior vice president of the immunology, ophthalmology and bio-oncology divisions.

[9] In 2013, Anderson moved to Switzerland to be head of global product strategy and chief marketing officer of the pharmaceuticals division at the Roche Holding AG.

[9] In July 2016, Anderson returned to the U.S. to lead North American Operations at Roche's subsidiary, Genentech.

[11] On June 1, 2023, Anderson assumed the role of CEO of Bayer AG, succeeding Werner Baumann.