Agricultural Engineers resolve technical problems that affect agricultural efficiency and production. They use computer technology to design machinery, systems, and equipments. For e.g.-they may design earth moving vehicles that can perform agricultural tasks in different weather conditions. They are expert in a variety of areas including farming, forestry, aquaculture and bio-fuels. Most agricultural engineers work full-time but their schedule can vary according to the project the are working on, when unexpected issues appear in construction projects, agricultural engineers may need to work outside standard business hours to address them.