Okay, let’s tackle this. So Douglas Kiesling has a mix of mechanical engineering and product development skills, which are in demand. His experience with Six Sigma and engineering management adds value. Location is Wisconsin Rapids, WI, which is a mid-sized city. According to national averages, mechanical engineers with similar skills can charge around $100–$150 per hour. However, considering his expertise in product development, I’ll estimate around $125 per hour, which is slightly above the average.