Express Entry is the main way for the federal government to give skilled workers permanent residence. If you meet the requirements, you should send your information through the online profile system (IRCC) of Immigration, Refugees, and Citizenship Canada. A CRS (Comprehensive Ranking System) score is assigned to them. Every two weeks, IRCC sends out invitations to apply for permanent residence to the CRS immigrants with the highest scores. This CVIS Immigration page has all the information you could possibly need about the Express Entry program for entering Canada.