Job ad paints new picture of 457 visa scheme It's a job offer with a catch. An online advertisement looking for painters states it has three positions available for workers on 457 visas. But to take the job you have to be prepared to invest in the company. We have 3 positions available immediately. Company is 'sponsorship ready' with decent turnover. So investment is required from applying candidates," the ad on Gumtree Australia read. You will also be given shares in the company. Attempts to contact the employer failed, but the ad is the latest to draw attention to claims the 457 visa scheme is being rorted. This Gumtree ad is the latest to draw attention to alleged rorts in the 457 visa scheme. Last month Fairfax Media revealed up to 200 cases of workers being exploited on the 187 and 457 visa schemes. These included workers being loaded with debts on very high interest rates to pay off agents and financiers. But the latest ad is different again, as it requires would-be workers to "invest" in a company to get work. Construction, Forestry, Mining and Energy Union national construction secretary Dave Noonan said there needed to be an investigation by the Department of Immigration and Citizenship. A spokesman for the department said the job ad was not in the spirit of the laws but it was unclear if it was in breach of them. Mr Noonan said there was mounting evidence the 457 system was being abused. "Those that say there is no rorting of the system are deluded and out of touch," he said. He said labour hire firms and migration agents were often to blame. There are many migration agents that are responsible but we are aware that there are some migration agents that have been making an absolute squillion out of rorting the 457 visa system. Employer groups have rejected claims of widespread abuse of the scheme and have attacked new government rules. The apparent rorting of Australia's visa system also appears wider than the nation's temporary work permits. Last month, job ads began appearing on British jobseeker website Reed.co.uk for transport operators to work in Australia's mining sector. They also warned that "no relocation assistance or travel expenses will be provided," and that successful applicants only offered "camp style accommodation" in Australia's outback. But the ads also noted that: "These positions would ideally suit working holiday visa holders." The federal government's working holiday visa program is designed to encourage "cultural exchange and closer ties" between countries, by allowing young people to have an extended holiday supplemented by short-term employment. Mr Noonan said using working holiday visas like this was "just a mechanism to undermine standards for Australian workers."