To add to Corinne and Kim's answers...if there are specific positions that you are considering or even specific companies, you can look at https://www.glassdoor.com/index.htm.
Once you register, you can look at anonymous employee reviews that will provide you with a good feel for the position and the company.
Before you review any company or job, try to determine what will bring you the most happiness in a work environment (career opportunities? salary? flexible work hours? etc).