A job offer that qualifies for Canadian immigration is a job that is full-time and permanent, not part-time or seasonal.
In addition, for the federal skilled worker visa, your profession has to be a specific skill type according to the National Occupational Classification (NOC) list. To qualify, the job offer should have a salary and working conditions comparable to other Canadians who work at the same type of job.
Other criteria may apply. Canadian Visa Expert specializes in helping people as they immigrate to Canada.