The Eden Project has announced 15 posts are to be lost from the organisation. Staff have been told and a 30-day consultation is under way.
Visitor numbers have fallen at the attraction and earlier this year Eden asked the government for funding to help it through a "difficult time".
The attraction recorded losses of nearly £2m in 2010-11 and last year announced debts of £5m.
In a statement the attraction said: "In common with other organisations locally and nationally, the Eden Project is having to reduce its costs further and regrettably this will result in the loss of up to 15 posts.
"Eden Project Ltd went through a major restructure earlier this year to help cut its annual costs by more than £2m and this resulted in the loss of 53 full-time equivalent jobs."
At present, the project has 394 full-time equivalent posts.
Meanwhile, Capital Gardens’ Highgate site has been sold to developer Omved International after locals failed to develop a plan to get an Eden Project satellite on the London site. The centre closed in July.
Former owner Colin Campbell-Preston said locals wanted to create an Eden Project satellite site there but they did not come up with funds. He said: "A nice small scale development – that’s what the land should end up being, for everyone’s sake."
Eden representative David Rowe said: "There was some contact from the Highgate project a year or more ago but that has not developed."
Meanwhile Eden creator Sir Tim Smit has been asked to develop an Eden to regenerate the Chinese city of Dongguan in Guangdong.