A former teacher convicted of sexually assaulting schoolboys hid his criminal past to find work at a Leeds college.
Alan Stancliffe, 58, worked at Trinity and All Saints in Horsforth for five years, helping to arrange work experience for students.
He had committed a string of sex offences against boys he taught at a private boarding school almost 30 years ago. His past came to light when he faced trial this month for sexually abusing another pupil at the same school.
"Leeds Trinity were not aware of any convictions when he was appointed or during the time he was in employment here," said director of marketing and communications, Kim Somerville.
"His work did not require or involve unsupervised contact with children or vulnerable adults, therefore a Criminal Records Bureau check was not required."
Stancliffe, of Pontefract, worked at the college from December 2002 to May this year. He suddenly resigned, citing personal reasons.
His work involved managing a programme to provide work links for undergraduates at the higher education college, which has about 2,500 students.
During his four-day trial at Ipswich Crown Court this month it emerged that he had been convicted, in 1982 and again in 1999, of indecently assaulting four boys at Kesgrave Hall School, a boarding school for disruptive boys near Ipswich, where he had been a woodwork and technical drawing teacher from 1978 to 1980.
Stancliffe had visited the boys' dormitories at night and sexually assaulted them in their beds.
During the trial, prosecutor Charles Myatt told the court that Stancliffe visited the victim, now in his 40s, in his dormitory cubicle and helped him with his homework.
On one occasion Stancliffe put his arms around the boy and performed a sex act on him.
The jury was also told by the prosecution that in 1980 he forced the boy to perform a sex act on him and also locked him in a woodwork shed and tried to force himself on him but the boy managed to escape.
Judge Neil McKittrick told Stancliffe he would stay on the sex offenders' register and be sentenced on December 6.