It's illegal to work on a tourist visa. If you want to work, you will need a work permit. To qualify for a work permit you must first find an employer in Canada who is willing to offer you a full time job. That employer must then obtain an approved LMIA. To do this, the employer must first advertise the job for at least a month to prove no Canadian can be found for the role. The employer must then pay a $1,000 processing fee and submit the LMIA application for processing. Processing can take anywhere from 6-20 weeks. If the LMIA is approved, you can then apply for a work permit.