The drop was largely due to the Covid-19 pandemic.
That's according to FRS Recruitment, who are however forecasting a 25% increase in job postings nationwide in the coming year.
The Cork experience reflected the national trend, with a 36% drop in job postings nationally over the last 12 months.
By sector, the largest drop in opportunities were in Arts, Entertainment and Recreation (down 75%); Hotel and Hospitality (down 62%) and Banking and Financial Services (down 58%).
FRS Recruitment predict that the Covid-19 vaccine will bring back confidence in the market, and that as 2021 progresses, their will be a strong pipeline of job opportunities in the second half of the year.