If she was doing that job currently, however she isn't, and she hasn't had an actual job for several years. I don't think we actually know when she jacked work in completely, when you consider it's 2 years since she was in early pregnancy with Wilbert and definitely wasn't working then, it's at least that long. Which would make it more like 16 when she allegedly started. It's possible, but unlikely.
As far as I know she never posted anything about leaving her job, you would think if she'd been there 10/20 years she would have had gifts, flowers, cards, possibly the MD throwing themselves at her feet and weeping at the honour of having had her work for them
none of her "friends" are people she ever worked with (except Charlie with the arse's dad)