Engineering is not a science. Engineers are certified to design, build, or maintain things. Scientists study things by using observations and hypothesis-driven experimentation. These are very different functions, and this is clearly evident by the different methods of training and certification in these fields. While engineers and scientists may use similar tools, such as mathematics and statistics, that doesn’t mean an engineer is at all qualified to be a scientist or that a scientist is qualified to design or build something. There are some individuals who do have the training and qualifications to work in both fields, and these people will agree that an engineer is not a scientist, and certainly not a hard scientist.
I have not claimed to be a sciencist. But engineers work in a hard science. Our degrees are science degrees, it even says so on our diplomas.