Can a mini-job and a short-term mini-job or short-term employment be carried out at the same time? About it the Minijobber magazine informs in a current contribution. The Minijobber-Magazin is a service of the Minijob-Zentrale.
The crucial information for extras: you can always take a short-term job, so to speak, even if you should already have a main job as well as one or even several mini-jobs in addition. And in contrast to the regular 450-euro mini-job, the amount of the wage does not play a role in short-term employment; only time limits have to be observed.

Minijobber-Magazin: 450-Euro-Minijob and short-term employment – Is that possible?