Judge Rosalind Coe told Hinds he had used "heartless, unkind and unacceptable violence".
You used violence, rough treatment, intimidation to frighten and control service users so they were less likely to display challenging behaviour in your presence.
Your bullying and intimidation to other staff members enabled you to carry on over a long period of time.
She said the victims in the case were severely disabled and in no position to defend themselves.
"It is hard to imagine more vulnerable people," Judge Coe said. "They were all dependent on you."
The judge said she read many impact statement from relatives of the victims. She said each spoke of devastation and breach of trust.
More top news
Daniel Rodriguez, also known as Grymey D, used Instagram, Facebook and Blackberry Messenger to contact girls who he invited to his home.
A grandmother burst into tears after her grandson played her surprise birthday messages recorded by her family.
Judge condemns pair who attempted to smuggle in migrants for their "greed" and "recklessness".