He replaced batteries and light bulbs . . . ![:whistling:](https://conservativecave.com/home/Smileys/default/whistling.gif)
Probably sorting the e-trash, or even checking the junk for still-functional stuff that could be re-purposed. It's serious title inflation if so. I suppose it's possible he actually ran a database for them on the site's computer, or something of the sort, of course the phrase may have some particular meaning in Brit employment circles, like 'Office automation specialist' does in our Federal government jobs (Where 'OA Specialist' means answering the phone, getting the mail, making copies, and having the basic computer literacy to do input, email, schedules, and printing).
Actually it sounds like this was a workfare system, where in order to get benefits he was supposed to work a certain number of hours in an assigned community-service job...he kept getting the benefits but refused to go to the work, so he's just been ordered to make up the time he owes them. A US court would probably have just ordered a financial judgment against him, which would be meaningless since he'd never repay it anyway.
I don't have a problem with it.