Interesting examples. I have interviewed candidates who: * Have impressive products that they "designed and implemented. * Co-authored a book. * Founded and ra

Interesting examples. I have interviewed candidates who: * Have impressive products that they "designed and implemented. * Co-authored a book. * Founded and ran a {programming-language} user group. In all 3 cases, the candidates came across very well when talking at the surface level. Digging deeper, they (in the first example) overqualified their contribution, and none of the 3 could write the simplest of code. There is a reason why coding tests exist.