The decrease reflects economic recession, which has forced many companies to hire less people, it said.
The report found reduced labour demand in 44 of 59 fields in the study.
The field of architecture and design topped the list with a 52 per cent reduction over the same period last year, followed by real estate with 50 per cent, construction with 49 per cent, accounting and auditing with 37 per cent and accounting and finance with 36 per cent.
Pham Thi Kim Dung, marketing manager of Vietnamworks, said these are the fields hit hardest by the continuing economic decline.
The report also said in the remaining 15 fields, labour demand increased. These included luxury products with a 41 per cent increase; hi-tech, 34 per cent; household goods and personal services, 25 per cent; Internet and communication 10 per cent; and IT and software 9 per cent.
According to the report, HCM City, which had the highest online labour demand in the country in the first half, also showed a 12 per cent fall over the same period last year, while Ha Noi posted a reduction of 26 per cent.
Slower recruitment was also seen in Da Nang City and the provinces of Binh Duong and Bac Ninh, the report said.
Tran Anh Tuan, deputy director of HCM City Labour Market Information and Labour Demand Forecasting Centre, said the decrease in labour demand was caused by the economic turmoil.
Many businesses have limited production, suspended operations, especially those in production and processing, he said. The economic slowdown has also forced firms to cut costs, thereby reducing the number of employees, he added.
Tuan said the demand for manual workers has also reduced in the textile and garment and leather and footwear sectors, not to mention machinery, metallurgy, chemicals, food and electronics industries.
To make the situation worse, supply would increase in the second half of the year as a large number of graduates enter the labour market, making the competition over jobs even more intense, the centre predicted.
VietNamNet/Viet Nam News