Okay, let’s break this down. Scott has a broad range of skills, including C#, Java, and Agile, which are in demand. He also has a degree from Carnegie Mellon University, which adds to his credibility. However, his experience is mostly as a Senior Developer at MathThinking Technologies, which might not be a top-tier company. Location is Rockville, Maryland, which is not a major hub for tech. Considering these factors, I'll estimate his hourly rate to be around $125, which is slightly below the national average for software developers in the US. This rate is also lower than what top developers with similar skills might charge, but it's still a competitive rate for someone with his experience and skills.