In order to be eligible for work immigration, you have to find reliable employer( at least 2 years in business and with 5 full time employees) , who has LMIA from CIC and are ready to hire you for specific position,period of time, hourly salary wage in his company in Canada. After working for this employer at least for 1 year, you will be able to apply for permanent residency in Canada through some immigration programs.
Express Entry system is an online government system, which helps potential immigrants to get permanent status in Canada through different streams (for instance: Federal Skilled Worker, Canadian Experience Class, etc.).This system evaluates eligibility of potential candidates and provides specific score, which should meet minimum score of each express entry draw. As soon as candidate has same score or higher than last draw, he becomes eligibile and gets invitation to apply for permanent resident status.System gives 90 days in order prepare the documents and upload to the online account. Processing time for express entry takes at least 6 month, depends on stream after submission full application.