Bechtel Corporation (Bechtel Group) is the largest construction and engineering company in the United States, ranking as the 5th-largest privately owned company in the U.S. Its headquarters are in the Financial District of San Francisco.
With an advanced biology degree, you can get a job as a biological research scientist. They conduct research, either independently or as part of a team, and they use the knowledge acquired from their research to develop medicine, diagnostic tools, and other products.
Good luck landing a 90-120k job out of a biology phd. You have to be very well connected to pull that off. 30-40k in the academic world and 50-60k in the biotech world is more realistic.