If you want to apply for graduate jobs in the UK you will require a valid work permit. If you originate from outside the EU you must have a work permit in order to begin work. You can visit www.workpermit.com for advice on Work Permits and Visa Processing in the UK
You should be enitled to work in the UK without any time restrictions. One year permits will not normally be acceptable.
Refugees have no UK visa requirement.
Nationals from the following countries do not need a work permit to take up employment in the UK:
Nationals from the following new member states; Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Slovakia and Slovenia who find work in the United Kingdom may need to register with the Home Office when they are offered work.
Please visit the Government's Work Visas page for more information.