The number of EU workers actively searching for jobs in the UK has fallen by more than 11% since the referendum in June 2016.

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According to job search data from Monster.co.uk, workers of Romanian nationality are the least keen to come to Britain to work, with Romanian search traffic for UK jobs dropping by 52%.

Country Fall in UK job searches Romania 52.1% Portugal 41.8% Poland 34.6% Spain 26.5% Greece 25.5% Belgium 21.4% Slovakia 21.2% Bulgaria 20.9% France 20.6% Slovenia 18.2%

This was closely followed by Portuguese searches, which dropped by 42%, and Polish by 35%. Searches from UK jobseekers continue to make up 80% of traffic to the job site.

At the same time, however, job searches by Swedish candidates went up by a fifth, and Finnish jobseekers by 18%. Monster also reported a rise in searches from some countries outside the EU – including the US and the Philippines.

The area of skills to experience the sharpest drop in job searches was business and strategic management, down 24.9%; sales and legal job searches also felt a decrease in interest, both down by just over 21%.

Searches for engineering roles were down 13.75%, but the number of jobs posted on the site rose proportionally by 11%. Demand for sales roles also rose proportionally by 11.3%.

Sinead Bunting, Monster’s vice president for marketing in Europe, said that the fall in active searches could leave UK businesses “unable to fill critical skilled roles”.

She added: “While no one knows for sure what kind of deal the UK will get as it exits the EU, it seems certain we will end up with controlled movement of EU workers, further restricting the supply of labour against a background of rising vacancies and full employment. To counter this, successful companies must focus recruitment efforts on passive job seekers – those not actively looking.”