Why are you reinventing the wheel? There are already apps out there such as monster.com and indeed.com.
In terms of finding work, there are job boards, trade journals, the internet, the help wanted section of a newspaper, and professional networking which includes but is not limited to chefs and suppliers. Some cities and states may have unions and these unions will have job boards.
With this being said, you might want to consider the possibility of offering a verification service for employers because people LIE on their resumes all the time. Even celebrity chefs and CEOs and the heads of government agencies have been known to lie. Robert Irvine for example worked for Food Network until they found out that he had was NOT a knight (because he kept referring to himself as "Sir" Robert Irvine. They also found that he had NOT made dinner for the Queen of England and the President of the United States. David Edmonson, the former CEO of Radio Shack, lied on his resume when he claimed to have degrees in Theology and Psychology. Michael Brown, former Director of the Federal Emergency Management Agency (FEMA), resigned after FEMA totally botched their emergency response in the aftermath of Hurricane Katrina. To get his job, Mr. Brown lied by claiming that he had directed emergency services for the City of Edmund in Oklahoma. He also claimed to have worked at the University of Central Oklahoma as a professor, Neither of these were true.