Do you think the design of the project is important?
The design of the project plays a crucial role. Design is able to sell well, through design you transmit emotions.
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And if anything, here is my portfolio

I can develop the logic and design of mobile and web applications, landing, etc
https://readymag.com/u86741020/717105/Design is important, but I think that in lot's of cases it has to be driven by data data and conversion statistics. There are many examples of beautiful design that is at the same time confusing to end customer.