Is your intention to work in Dublin for the foreseeable, or are you considering moving out of Dublin - either to a commuter town or down the country? Have you any intention of going international any time soon?
What are you paying in rent? What are your current living arrangements - renting a place on your own or a room in a house etc?
Have you considered the option of using the money to buy a place now (assuming you would get a mortgage), and renting out 1-2 rooms earning you 14k tax free a year? This would go a long way to paying towards a mortgage ...
Agree re not invest in equities as your timeframe is too short!
I would also suggest holding off on the pension until you are either in the high tax bracket or have your house purchased. I don't see the value in maxing out your AVC's when you are only on the standard rate of tax, especially when you will need the money in a few years time !