The Work Programme has come in for criticism since its inception in 2011, with a recent report from MPs on Westminster's Work and Pensions Select Committee saying it was unlikely to help the most disadvantaged job seekers back into work.
The most recent statistics on its performance also found that 5.3% of employment and support allowance participants achieved sustained employment in its second year, compared with a benchmark of 16.5% set by the Government.
However the report did suggest the programme was improving in general, and found the clients who most recently completed a year on the programme were gaining more positive outcomes.
Amid the scrutiny, the director of Ingeus in Scotland said the service is helping hundreds of employers in Scotland fill vacancies in their workforces, insisting it offers "massive opportunities for employers".
Paul de Pellette said: "We can and regularly do take the hassle out of recruiting, whether you are recruiting a small number of people or whether you are recruiting in bulk.
"We can help smooth by the process by pre-screening candidates, by pulling together CVs, by hosting interviews in our premises.
"We have had quite a lot of experience of delivering specific workshops that prepare people for a [particular] employer or sector."
Mr de Pellette said Ingeus, which began life in Australia in the 1990s, has helped 20,000 people return to work in Scotland since setting up here in 2007.
Alongside Working Links, it successfully tendered for the right to undertake the Work Programme under a seven-year government contract north of the Border.
Through its six offices in Scotland, and network of affiliate organisations throughout the country, it prepares people to return to work by aligning their skills with opportunities and providing support to help them to remain employed.
At the same time it works closely with employers to help them find the staff they need.
Companies using the free service range from the retail arm of the Co-operative Group to Jamie's Italian, the restaurant chain owned by Jamie Oliver.
One bar worker in the licensed trade recently found work at the Kimberley Tavern in Glasgow's east end after Ingeus referred him to the Tennent's Training Academy, where he gained a personal licence holder certificate.
While Ingeus matches staff to jobs across a range of sectors, from caring to manufacturing, Mr de Pellette said opportunities are driven by the service sector, reflecting the nature of the Scottish economy.
On the wider jobs market, he welcomed recent statistics that showed unemployment is falling in Scotland and that the jobless level is not as high here as it is elsewhere in the UK. He also noted the jobs market did not plumb the depths that some economists predicted at the height of the recession.
However he did say the area of youth unemployment was a concern after last month's figures showed an increase, and emphasised the importance of equipping school leavers with the skills to deal with the labour market.
Mr de Pellette said: "I think most commentators would agree that there are cautious optimism signs there. We are certainly seeing in the Work Programme that we are performing better month after month.
"We have already helped 20,000 people move back into work in Scotland, which is an amazing number.
"And every month we are seeing between 1000 and 1500 clients start work. That is incredibly positive from that point of view. Our role is to build on that to ensure we continue get improved performance and to create openings for clients and to help service employers."
Mr Pellete said the majority of its clients are determined to return to work, though he admits it can be a long process. Although some people can use the programme to plan a long-term career, he said for many it is about developing the ability to withstand the vagaries of the jobs market.
Mr de Pellette said: "Being out of work has a massive impact on people's confidence. It does also have an impact on their health and well-being.
"It is about how we get out of them what their potential is, how we build that potential, and connect them to whatever is available in the local market at that point in time."