Getting a job and working in the EU is, for many, the main reason to acquire a residence permit of the respective country. It gives an opportunity to live and provide for the family in a country of your choice, can help acquiring a long-term residence permit, and can even pave the way to foreign citizenship. Moreover, if you choose one of the countries of the European Union, the Schengen zone or the EEA, you can enjoy the following benefits:

non-member country workers treated equally to EU nationals
access to professional training for you and your family members
social security for you and your family members
representation by the local trade unions
social and tax advantages
free travel to other Schengen area, EU and EEA member-states
ability to stay in the country even if you decide to stop working there