The phrase "an engineer demonstrating" is correct and usable in written English.
It can be used when describing an engineer who is showing or explaining something, typically in a technical or educational context.
Example: "In the workshop, an engineer demonstrating the new software features captivated the audience with his expertise."
Alternatives: "an engineer showcasing" or "an engineer illustrating".
As long ago as the 1930s, a German engineer demonstrated that an internal-combustion engine could be made to run on hydrogen.
Although a Kodak engineer demonstrated a digital camera prototype in 1975, the company's film business was so profitable that it only slowly explored the digital camera opportunity, failing to recognize the technology's disruptive potential.
For instance, Andrew Farrah, the Volt's chief engineer, demonstrated to a few of us how the charging system works.
The final activity of the prioritization is to check the consistency of the judgements that the software engineer demonstrated during the pairwise comparisons.
James didn't mention it again, but two weeks later an engineer proudly demonstrated a way to add that functionality to Domo's product.
But in the conduct of their research and in their assessment of applications, scientists and engineers demonstrate a clearly ethical course.
Robotic fish are not new: In 1994, MIT ocean engineers demonstrated Robotuna, a four-foot-long robotic fish.
David Verdi, executive director for news at NBC, said he saw something very similar to that last November, a prototype by Swe-Dish Stockholm Systhat of Stockholm that engineers demonstrated for him in the NBC parking lot.
The research follows a separate project at Washington State University last year in which engineers demonstrated how 3D-printer-created ceramic scaffolds could be used to promote the growth of new bone tissue.
In several of the lessons, there was a large focus on using engineering to help develop teamwork and other skills that engineers demonstrate in the work place.
