Postal group TNT is set to add 400 new positions in London under plans to double is workforce in the capital.
Four new delivery units will be opened and TNT Post said it was focusing on creating opportunities for young and long-term unemployed, adding that the flexibility of its jobs were particularly appealing for local residents, women returning to work and school-leavers.
Chief executive Nick Wells said: "We are passionate about creating jobs. These jobs have been filled by people who may have found it difficult to get back into, or even join, the work force.
"We are committed to helping develop people's careers and our focus on training and development will not only benefit TNT Post employees, but also the wider business community."
TNT Post began an end-to-end delivery service in competition with Royal Mail in April 2012 in West London and has since extended its operations to South West London and Manchester, with the intention of creating a nationwide delivery network to households across the UK by 2015.
The company has created 1,000 jobs in London, saying this will double to 2,000.
A separate report predicted that the trend of people working shorter hours in the UK is likely to continue despite the economic recovery.
The Jobs Economist said around one in five employees now worked in "mini jobs" of between 16 and 20 hours a week.
Director Dr John Philpott said: "A sustained economic recovery is likely to see a much faster rate of full-time job creation and help reduce under-employment, but it would be wrong to assume that this will reverse the long-run trend towards shorter working hours.
"Although the UK continues to be characterised as having an ingrained long hours work culture, the reality has been an ongoing structural shift towards a shorter hours work culture which is likely to continue even in better economic times."
Unemployment has been falling for months and saw a huge 167,000 reduction in the quarter to November to 2.32 million.
