Extraordinary teams building inspiring projects: Since 1898, we have helped customers complete more than 25,000 projects in 160 countries on all seven continents that have created jobs, grown economies, improved the resiliency of the world''s infrastructure, increased access to energy, resources, and vital services, and made the world a safer, cleaner place. Education and Experience Requirements: Bachelor of Science Degree in industrial hygiene, occupational health, chemistry, biology, engineering, or a related scientific field plus 5 years of practical industrial hygiene experience performing the responsibilities listed above, or in lieu of a degree, 9 years of directly related work experience.