Tens of thousands of job vacancies need filling “urgently” or require an “immediate start” as the pingdemic is blamed for staff shortages.
More than 1.1 million posts are available as bosses struggle to recruit, according to an employment search engine.
There are almost 31,000 retail vacancies, up by 14% in the last month, 10,000 in supermarkets, 77,000 in hospitality and catering, 90,000 in trade and construction, and 84,000 in logistics and warehousing.
Some 72,000 adverts are labelled as "urgent" or with companies wanting an "immediate start" for workers.
Adzuna found 1,116,454 advertised vacancies between July 19 and 25 – marking the 11th consecutive week of vacancies topping a million.
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Co-founder Andrew Hunter said: "The pingdemic has hit just as businesses start to get to grips with filling open roles.
“The struggle to hire is one of the biggest challenges facing businesses, with hundreds of thousands of workers still on furlough, hesitation among others to go back to work, fewer overseas workers available to fill positions, and a lack of skilled staff in some sectors.
“The pingdemic has compounded these issues, as many jobseekers are forced to self-isolate over attending interviews or starting work.
“This is on top of absences from existing staff who have been pinged.
“It’s a critical moment for industries like the wedding sector and some smaller independent shops and restaurants, who are relying on the summer period to make up for lost income needed to keep their businesses afloat.
“Meanwhile in sectors like construction and manufacturing, the pingdemic is causing pent-up demand as projects are delayed, meaning even more pressure to find staff going forwards.”
The Government is easing self-isolation rules for people alerted by the NHS Covid-19 app from August 16.
A record 689,313 alerts were sent to users of the app in England and Wales in the week to July 21.