Okay, let’s calculate this. Vahid has full professional proficiency in English, which is a plus. He’s also proficient in multiple programming languages like Python, Sql, and Matlab, which are in demand. Data science skills like machine learning and data analysis are also valuable. Location is Los Angeles, which is a hub for tech companies. Considering these factors, I’d estimate his rate to be around $125 per hour, which is slightly below the national average for data scientists in the US, but still competitive given his skillset and location.