Data Science Jobs: What would you say.. you do here?

This dataset includes position title, company name, job description, number of reviews for the company, and location of job. It was sourced from here. With this data, you can answer questions like:1.Who gets hired? What kind of talent do employers want when they are hiring a data scientist?2.Which location has the most opportunities?3.What skills, tools, degrees or majors do employers want the most for data scientists?4.What's the difference between data scientist, data engineer and data analyst?5.Can you develop an efficient classification algorithm to differentiate the three job types above?