As a noun:
* The bridge was designed by a brilliant civil engineer.
* She's studying to be a software engineer.
* Engineers are essential for building and maintaining infrastructure.
As a verb:
* They engineered a plan to increase production.
* The team carefully engineered the experiment.
* The company is engineering a new product line.
In a phrase:
* She has a strong engineering background.
* The company is known for its engineering excellence.
* The project requires a lot of engineering expertise.
In a figurative sense:
* He engineered a way to get out of the meeting early.
* The politician engineered a campaign to win the election.
The specific context will determine the best way to use "engineer" in a sentence.