A grant of £21,250 has been awarded to Liberate through the Guernsey Community Foundation's strategic grants programme.
The charity's vice chair, Ellie Jones, will take up the post for one year, starting from next month.
Until now, Miss Jones said, all of the charity's work had been completed by volunteers, but the new paid position would enable the charity to reach its objectives quicker.
She hoped to complete the equivalent of five to seven years of voluntary activity within the 12 months.
Although she will be working part-time, Miss Jones was confident she would be able to set up the majority of projects within the year.
However, the charity will still need to call on its volunteers to progress the work during her tenure and particularly afterwards.