Michael Kearney, 35, who has Asperger's syndrome, has not let a disability get in the way of working two paid jobs and volunteering at another each week.

Known to his colleagues as Micky K, he is now among the longest-serving staff at the supermarket and has also clocked up 10 years at Leahy's Electrical Services.

Asked what his favourite job was, he listed tasks from cleaning, stocking shelves, to securing pallets, before he admitted "the whole lot".

"When I am here on Tuesday, Wednesday, Thursday, I don't get lost or anything," he said, before listing many more tasks he's responsible for.

IGA store manager Brett Maloney said the store was approached by Southern Stay Disability Services 15 years ago to have Micky work at the store, and he had been there ever since.

"It's incredible for anyone to make it that long these days, it's a credit to him really," Mr Maloney said.

He said that his fondest memories working with Micky were the sense of surprise customers showed.

"If they're a new customer and they're not sure, some people aren't used to people talking to them and he likes to go up and introduce himself and ask who they are and tell them about himself and ask about them," Mr Maloney said.

"And that's very interesting to watch the interaction and usually they'll have a laugh together. He will always remember the customer when the come back and will call them by their name. He has a very good memory."

Mr Maloney said Micky's memory was also a strength on the job.

"If it's a new job, we will need to go through it with him a few times, and he will then take it on straight away and he won't want to stop doing it," he said.

Between 2003 and 2015 Australia's unemployment rate remained around five per cent, while unemployment of people with disability increased from eight to 10 per cent, Australian Institute of Health and Welfare figures show.

Mr Maloney said the store employed a number of people with disability, but needed time and resources to provide additional training and support.

"We just need the time at the start to teach them, and there is only so many opportunities with hours to teach them, so we can't just put on more people," he said.

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