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.
This is immensely valuable in all types of business and every organization needs to hire people who have the aptitude to do these tasks in complex environments. Some biology major graduates do end up working in a field that is directly related to their studies. Health technologists, physician assistants, food science technicians, and environmental science researches, for example.
Just graduated with a Ph.D. in the aquatic biology/ecology/animal behavior part of the bio spectrum. The salaries for jobs I have applied to have mostly been in the 35,000 - 55,000 range. But I've been looking for 5 months and haven't been hired yet, so it may be I'm looking at the wrong jobs.