An engineer is a specialist inventor who creates or improves technical mechanisms. The profession has been going on for several hundred and even thousands of years. The greatest famous engineers include Archimedes, Leonardo da Vinci, Nikola Tesla, Henry Ford, Sergei Korolev, Elon Musk, and the line of genius techies will never run out.
Specialists of engineering professions work in mechanical engineering, oil and gas production, construction, in all types of production. They are involved at every stage of product creation. Therefore, there are specialists who design, those who establish the production of parts. There are engineers who monitor safety and those who maintain the created equipment.