While engineering encapsulates the entire process of making a product, technology refers to the core principle which makes the product unique.
For e.g, if an person is a making a butt joint between two metals, the engineering process behind this would include facing and polishing the metal, welding the metal and finally tempering and chipping away any excrement metal. This was the engineering process. The technology behind the butt joint is simply welding.
In essence, technology defines the core of an engineered product.