a person who is trained or works in or follows as a profession a branch of engineering

a designer or builder of engines

a person who maintains or, operates, or supervises an engine or apparatus

a soldier who carries out engineering work

NAmer a driver of a railway locomotive

a person who starts or carries through an enterprise, esp by skilful or artful contrivance

the engineer of the agreement

NAmer = engine driver

to design or construct (something) as an engineer

bridges engineered with wonderful invention

to produce (a product or organism) through biological manipulation

genetically engineered tomatoes

to contrive or plan (something), usu with subtle skill and craft

The flimsy Geneva settlement, engineered by Eden in 1954 to enable the French to withdraw from Indo-China, was breaking down — Peter Lewis