So you have a job offer with LMIA? If not, you need a job offer and your employer needs to file for and pay $1k for a LMIA. The LMIA shows that no Canadian or PR could be hired, only you. Then with LMIA, you apply for a closed work permit. For the permit, you show that you are experienced to do the job. Depending on the NOC for the job you may need ECA and IELTS.