There are many good programmers available, who could quickly learn Go, who would work for a fraction of that. Look for someone who knows how to program (in an

There are many good programmers available, who could quickly learn Go, who would work for a fraction of that. Look for someone who knows how to program (in any language), who knows the problem space you're in, and they will be able to learn how to adapt to Go fairly quickly. 400k is not at all the market rate.