If you've just finished work, then you may qualify for Jobseeker's Benefit which isn't means-tested so your savings won't be counted.
The savings will be assessed as follows for Jobseeker's Allowance.
First 20 000 is disregarded (ignored).
The balance (5000) is assessed at 1 euro per 1000 per week - so you will be assessed as having €5 means per week.
Assuming you're single and have no other income, your entitlement would be 204.30 (full rate Jobseeker's) minus €5 means.