Real Dictionary

engineer
When a vehicle, bridge, or building is engineered, it is planned and constructed using scientific methods.
countable noun: An engineer is a person who is responsible for maintaining the engine of a ship while it is at sea.
countable noun: An engineer is a person who repairs mechanical or electrical devices.
countable noun: An engineer is a person who uses scientific knowledge to design, construct, and maintain engines and machines or structures such as roads, railways, and bridges.
verb: If you engineer an event or situation, you arrange for it to happen, in a clever or indirect way.

engineer in American English
a person who makes engines
noun: a person trained and skilled in the design, construction, and use of engines or machines, or in any of various branches of engineering
transitive verb: to plan, construct, or manage as an engineer

engineer in British English
to originate, cause, or plan in a clever or devious manner
noun: a person trained in any branch of the profession of engineering