Okay, let’s calculate this. So Johann has a broad range of skills, but no specific experience in high-demand areas like cloud computing, data science, or cybersecurity. His native English proficiency is a plus, but not exceptional. Location is Seattle, which has a relatively high cost of living. Considering his skill set and location, I'd estimate his hourly rate to be around $120, which is slightly below the national average for software developers in the US. This is because his skills don’t align with the most in-demand areas, and he doesn’t have any specific certifications or experience in high-paying industries.