Design can mean many things. I am a backend developer and we also design, but our designs are for abstract structures with certain qualities required for humans, machines, and ilities. I thought that this might be related to backend design. I looked into the website looking for a definition of what hey mean by "design". I did not spend a lot of time but I could not find it. I guess they are talking about UX design. Then suddenly I am not so interested. Not because I feel that UX design is not interesting; it is extremely important. But I think we also need to talk about backend design so much more.