redukcja zatrudnienia in English:

if you downsize a company or organisation, you make it smaller by reducing the number of people working for it, and if it downsizes, it becomes smaller in this way

I have to downsize my spendings.

Corporations are downsizing and reducing the amount of profits they put back into R&D.

The company I worked for was downsizing. Unfortunately, I lost my job.

a trend for corporate downsizing

After all, even salesmen are desperate to avoid being targeted for downsizing.