The biggest quarterly movers were leisure and tourism, which rose 35% from 1,575 to 2,127 vacancies, and logistics and distribution, which increased 16.5% from 65,806 to 76,639.
Looking at the past year, leisure and tourism was up 31.5%, hospitality – catering up 18.4%, logistics and distribution up 17.3%, and management roles up 12.5%.
62% of businesses reported that employing staff had become more expensive over the past year, but average advertised salaries only rose 2.28% year-on-year.
Employers pointed to the rise in National Insurance as the biggest driver of higher costs, at 19%.
Half of employers said hiring was harder than 12 months ago, with a shortage of candidates with the right skills.
The data also showed private-sector salary transparency jumped 58.5% year-on-year, as employers led with pay to attract talent.
Lee Biggins, CEO and founder of CV-Library, said: “After a positive start to the year, with job postings up in January and February, hiring took a hit in the subsequent three months.
“The war in Iran and rising energy and supply chain costs tempered confidence leading to a notable dip in the number of postings.
“But June has bucked the trend with a significant uptick in the number of job roles advertised – the highest level since October 2023.”
Biggins added: “We may be seeing green shoots of confidence, but businesses still face hiring headwinds.
“More than six in ten businesses say employment costs are rising – driven by National Insurance and other hiring costs.
“Add into the mix the Employment Rights Bill, a shortage of candidates with the right skills and wider economic uncertainty, and we need to be cautious in proclaiming the market has turned.”
He said: “But, if June’s uplift in job postings can be sustained going into Q3, and cost pressures ease even a little, we could finally see a longer-term, up-turn in the job market which will be good news for everyone.”