Okay, let’s tackle this. So Johnny Diaz has 10+ years of experience as a software engineer, which is a solid amount of time to have developed a strong skill set. His skills in JavaScript, React, Node.js, and MongoDB are in demand. Location is Cleveland, Ohio, which is a mid-sized city with a growing tech industry. According to Glassdoor, software engineers in Cleveland can earn around $90,000-$120,000 per year. Considering his experience and skills, I would estimate his hourly rate to be around $125, which is slightly below the national average for software engineers in the US, but still a competitive rate for someone with his level of experience in a mid-sized city.