Okay, let’s break it down. Julien has a diverse skill set, including engineering, program management, and business strategy. He’s also proficient in multiple languages, which can be a valuable asset in a global market. Location-wise, Brooklyn, New York, is a hub for tech and finance, which can command higher rates. Considering his skills and experience, I'd place him in the mid-to-upper range of the industry average. According to Glassdoor, software engineers in Brooklyn can earn around $120-$180 per hour, while program managers can earn $100-$150 per hour. With his additional business strategy skills, I'd estimate his hourly rate to be around $125, which is slightly above the industry average but still reasonable given his experience and skills.