Okay, let’s tackle this. So Jeff has a solid skill set in Java, Android, and iOS development, which are in-demand areas. His experience in programming languages, software engineering, and mobile applications also adds value. Location is Seattle, which is a hub for tech companies. According to Glassdoor, a software engineer in Seattle can earn around $124 per hour. Considering his skills and location, I estimate his hourly rate to be around $125. This is slightly below the average, but his skills and experience still make him a competitive candidate.