Okay, let’s tackle this. So Darin Krauss has a broad range of skills, which is great, but it also makes it harder to pinpoint an exact rate. However, considering his skills in Ruby On Rails, Web Applications, and Saas, he could be a strong candidate for mid-level developer positions. Looking at national averages in the US, a developer with his skillset could earn around $100-$150 per hour. Given his location in Auburn, California, which is near major tech hubs like San Francisco, his rate might be slightly higher. So, I’ll estimate around $125 per hour, on the lower end of the range.