Okay, let’s tackle this. So Justin Ritthaler has 16 years of experience as an Application Engineer at Havtech, which is a mid-sized company in the HVAC industry. His skills include HVAC design, energy efficiency, and customer service. Location is Baltimore, MD, which is a relatively affordable market. Mechanical engineers with his level of experience and skills typically charge lower rates, around $50–$100 per hour. Considering his education from Penn State University, which is a reputable institution, I’ll estimate around $75 per hour.