Okay, let’s calculate this. So Peter has a solid foundation in computer science with skills in multiple programming languages. He’s also got experience with Linux system administration, which is in demand. Considering his skills and the location (State College, PA), I’d estimate his rate to be around $125 per hour. This is slightly lower than average for a computer science professional in the US, but taking into account his location and the fact that he’s not a senior engineer, this seems reasonable. Some junior engineers in the area might charge $100–$150 per hour, while more senior engineers could charge $200–$300 per hour. So, $125 seems like a fair estimate.