Emergency room doctors treat everyone that comes into the emergency room. They stabalize patients in any ilness or trauma until that patient can see a specialist.

There are many paths you can take as a doctor, some choose to become a trauma surgeon. Trauma surgeons don't always stay in the ER, but come when certain patients need their skills. They will take patients into surgery if needed and provide follow-up care. ER doctors and Trauma Surgeons often work together.

To become an ER doctor you need a 4-year bachelor's degree, four years of medical school, and three years of residency in emergency medicine.

Commercial developers create property for profit. Typically smaller than industrial development, it can include anything from industrial manufacturing to residential real estate.

You can manage all aspects of commercial development, from finance to marketing to supply chain. There are also many types of industries you can start a career in: non-profit real estate, investment banking, retail, office, or hotel and tourism.

Degrees in this field are your typical bachelor's degree in business, depending on which aspect you want to start your career in. Taking a few real estate classes would also help in getting knowledge about the industry.