The index, which analysed job vacancies for the second quarter of 2021, reported 40% more vacancies in Cork than in the first quarter of the year.
Nationwide, an increase of 157% has been reported in comparison to the second quarter of 2020, when the introduction of pandemic restrictions led to mass unemployment.
19% more job vacancies were advertised in the second quarter of this year than the same period of 2019, the last year unimpacted by the pandemic.
Accountancy and finance, HR and recruitment, and marketing are among the fields reporting the highest growth in job vacancies.
"Sectors that were especially hard hit by restrictions are recovering quickly, while it is clear from the growth in financial and business support sectors that pent-up demand for talent during lockdown is transforming into active recruitment," said IrishJobs.ie general manager Orla Moran.
"This economic rebound is taking hold across the entire country, not just in major cities," Moran emphasised. "In line with this demand for talent, we can also anticipate a rise in jobseekers looking to kickstart their career, or even change career path. While many employees will have opted to stay secure in their current job during lockdown, the increased certainty that reopening brings, the new culture of openness to hybrid working, and the sheer number of vacancies means that 2021 is likely to be a year of mass movement between roles, or what some economists and recruitment professionals are calling the ‘great resignation’."