Mechanical, Energy, Railways, Digital design, Highways, Water, Renewables, Planning and modelling, Surveying inspection and field services, Bridges, Civil, Systems and signals, Project controls, Building sciences, Maritime, Tunnels, Infrastructure, Oil and gas, Structural, Environment, Geotechnical and tunnelling, Business development, GIS, Electrical, Project programme and commercial management, Building services. San Ramon, California, United States / Los Angeles, California, United States / Orange, California, United States / San Jose, California, United States / Seattle, Washington, United States / Austin, Texas, United States / Denver, Colorado, United States / Portland, Oregon, United States / San Diego, California, United States.