More than 10,000 people expected to attend the country's biggest recruitment event in Dublin today.
Career Zoo will have thousands of opportunities in the finance, technology and life science sectors - all of which are based in Ireland.
The event will be launched by Jobs Minister Richard Bruton.
Career Zoo director Brian Ó hOisín says as well as thousands of jobs, there will also be skills workshops on offer.
"We've got some really exciting ones actually," he said.
"People can come and learn how to build an app in an hour, we've got talks for companies like Facebook and AOL."