An engineer is someone who applies science and mathematics to develop solutions to problems. Engineers work in a variety of fields, including electrical, mechanical, civil, and environmental engineering.Most engineers have a college degree in engineering. Engineers must be able to solve problems and think creatively. They must also be able to communicate well, both in writing and in person.Engineering is a demanding profession, but it can be very rewarding. Engineers help to make the world a better place by developing new technologies and improving existing ones.