I worked on one of the largest Portuguese tech companies, it was kinda dependent on the business area. In the telcos department I barely had to do any overtime, it was only for emergencies. My colleagues in the banking department, however, wouldn’t ever see the light of day. They arrived before sunrise and left long after sunfall. Projects were submitted at a loss to in the hope of netting future projects. Developers were supposed to work overtime to compensate this… If you refused to work overtime your carreer would have end at that company.