Foreign direct investment has a strong impact on the level of employment and its structure in companies. The article presents the structure of factors regulating and adjusting the employment scale to real productivity needs. The presentation is based on one of the best examples of foreign direct investment in Poland - GlaxoSmithKline Pharmaceuticals, Joint Stock company. The privatization process is like a mirror of destabilized economy. The correction of employment structure inside the company reflects the overall employment fluctuation in economy and even the structural unemployment classification. The model built on the GSK example, describes the 8 years long process of employment adjustment and can be recognized as a benchmark for the employment transition in foreign companies in Poland.