Habibur Chowdhury, paid Mohammed Manik just over half the minimum wage to work a 72-hour week.
Chowdhury's Ashiana restaurant was raided in June 2015 following a tip-off about illegal immigrants working there.
He later told police he had nothing to do with the restaurant and claimed not to know who Mr Manik was.
His defence agent described 60-year-old Chowdhury as "wilfully blind" when it came to checking the Bangladeshi national's papers.
Mr Manik told Home Office investigators he "felt exploited" by Chowdhury.
Depute fiscal Eilidh Robertson previously told Dundee Sheriff Court that Mr Manik had applied for asylum but had been refused.
She said: "He couldn't support himself and was living in Glasgow.
"He explained his predicament to a friend who put him in touch with the accused who offered him a job in Dundee."
The court was told Mr Manik was paid cash to work six days a week for 12 hours a day.
Miss Robertson said: "He was paid £300 a week regardless of how much he worked."
Chowdhury, of Dundee, admitted employing someone who had not been granted leave to enter or remain in the UK.
Sheriff Alastair Brown imposed a restriction of liberty order confining Chowdhury to his home address from 19:00 to 07:00 every day for six months.
Sheriff Brown said: "It seems reasonably clear that the UK government and a significant proportion of the UK public is exercised about immigration.
"The laws are there to protect the vulnerable.
"The picture I get from your record, this offence and your attitude to the social workers preparing reports in this case is of a man who regards regulatory rules with an arrogant attitude that they don't apply to him unless he so chooses."

Eugene Gunderman, 28, from Old Windsor in Berkshire, admitted stealing the Audi which knocked over PC David Oram in Chorleywood last July.
At St Albans Crown Court he was jailed for four years and ten months.
Damon Denham, 27, from Old Windsor, admitted car theft and was jailed for nine months.
Gunderman, of Queens Close, who also pleaded guilty to attempted robbery, ABH and dangerous driving, and disqualified from driving for five years.
Both men's sentences will run consecutively with convictions they received last August at Guildford Crown Court for their part in a conspiracy to rob a jeweller.
The court was told Denham drove Gunderman to Berkhamsted, in Hertfordshire, on 10 July.
Gunderman had arranged to test drive a grey Audi RS6, being advertised for sale, but instead sped off in it from the owner's home in Upper Hall Park.
Drivers on the M25 saw the vehicle racing along the hard shoulder at speeds of between 70 and 100 mph.
PC Oram and PC Stuart Fraser later found it parked in a lane where it was driven at them by Gunderman, who knocked down PC Oram, running over the base of his lower back and up his shoulder, before speeding off.
The defendants were arrested after the car collided with a number of other vehicles.
PC Fraser said he thought his colleague "had been killed".
"I have never been so relieved in my career to see someone get off the ground .... I have no idea to this day how he escaped," he said.
Mr Oram said his back was "never going to be 100 per cent" but hoped to remain as a front line officer as long as his back allowed.
Chief Supt Bill Jephson praised both officers for continuing to pursue the defendants, despite Mr Oram's "significant injuries".
"This proves how dedicated our officers are in facing life-threatening situations in order to prevent crime and protect the public, and their bravery should be commended," he said.
A Dundee restaurateur who paid a failed asylum seeker £4 an hour to run his kitchen has been placed on a six-month curfew.
[NEXT_CONCEPT]
Two men have been jailed after they stole a car which was used to run over a Hertfordshire police officer, leaving him seriously injured.